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Dreamland: Adventures in the Strange Science of Sleep

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An engrossing examination of the science behind the little-known world of sleep.

Like many of us, journalist David K. Randall never gave sleep much thought. That is, until he began sleepwalking. One midnight crash into a hallway wall sent him on an investigation into the strange science of sleep.

In Dreamland, Randall explores the research that is investigating those dark hours that make up nearly a third of our lives. Taking readers from military battlefields to children 's bedrooms, Dreamland shows that sleep isn't as simple as it seems. Why did the results of one sleep study change the bookmakers odds for certain Monday Night Football games? Do women sleep differently than men? And if you happen to kill someone while you are sleepwalking, does that count as murder?

This book is a tour of the often odd, sometimes disturbing, and always fascinating things that go on in the peculiar world of sleep. You ll never look at your pillow the same way again.

290 pages, Hardcover

First published August 6, 2012

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About the author

David K. Randall

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David K. Randall is a senior reporter at Reuters and has also written for Forbes, the New York Times, and New York magazine. He is an adjunct professor of journalism at New York University and lives in Brooklyn, New York.

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Profile Image for Riku Sayuj.
658 reviews7,499 followers
September 16, 2014

Wishing Yourself A Good Night

What do you do when you really don鈥檛 have much to tell on a subject, especially when you care a lot about it? You tell anecdotes and try to keep it interesting. Most neuroscience books these days tend to be packed with anecdotes that are weird, but on which there is no scientific consensus. The reader is left to his/her own devices on what to make of all the stories. This book is not much different. It starts with an admission that we know next to nothing about sleep - the activity that occupies 1/3 rd of our lives.

The author sets off an a quest to discover more about his own sleep conditions and finds that he has fallen into a strange rabbit hole that exists just on the other side the pillow, and which most of are never aware of.

Once I started really thinking about sleep for the first time, the questions came in waves. Do men sleep differently than women? Why do we dream? Why is getting children to fall asleep one of the hardest parts of becoming a new parent, and is it this hard for everyone around the world? How come some people snore and others don鈥檛? And what makes my body start sleepwalking, and why can鈥檛 I tell it to stop? Asking friends and family about sleep elicited a long string of 鈥淚 don鈥檛 knows,鈥� followed by looks of consternation, like the expressions you see on students who don鈥檛 know the answers to a pop quiz. Sleep, the universal element of our lives, was the great unknown. And frankly, that makes no sense.

A few take aways:

1. The Need for sleep:

Most of us will spend a full third of our lives asleep, and yet we don鈥檛 have the faintest idea of what it does for our bodies and our brains. Research labs offer surprisingly few answers. Sleep is one of the dirty little secrets of science. We don鈥檛 know about sleep, and the book opens with the most obvious question of all鈥攚hy we, and every other animal, need to sleep in the first place.

Here we hear many horror stories of sleep-deprivation: Within the first twenty-four hours of sleep deprivation, the blood pressure starts to increase. Not long afterward, the metabolism levels go haywire, giving a person an uncontrollable craving for carbohydrates. The body temperature drops and the immune system gets weaker. If this goes on for too long, there is a good chance that the mind will turn against itself, making a person experience visions and hear phantom sounds akin to a bad acid trip. At the same time, the ability to make simple decisions or recall obvious facts drops off severely. It is bound to end in severe consequences - including death. It is a bizarre downward spiral that is all the more peculiar because it can be stopped completely, and all of its effects will vanish, simply by sleeping for a couple of hours.

2. The Amount of sleep:

Humans need roughly one hour of sleep for every two hours they are awake, and the body innately knows when this ratio becomes out of whack. Each hour of missed sleep one night will result in deeper sleep the next, until the body鈥檚 sleep debt is wiped clean.

3. The Stages of Sleep:

Researchers now say that sleep is made up of five distinct stages that the body cycles through over roughly ninety-minute periods. The first is so light that if you wake up from it, you might not realize that you have been sleeping. The second is marked by the appearance of sleep-specific brain waves that last only a few seconds at a time. If you reach this point in the cycle, you will know you have been sleeping when you wake up. This stage marks the last stop before your brain takes a long ride away from consciousness. Stages three and four are considered deep sleep. In three, the brain sends out long, rhythmic bursts called delta waves. Stage four is known as slow-wave sleep for the speed of its accompanying brain waves. The deepest form of sleep, this is the farthest that your brain travels from conscious thought. If you are woken up while in stage four, you will be disoriented, unable to answer basic questions, and want nothing more than to go back to sleep, a condition that researchers call sleep drunkenness. The final stage is REM sleep, so named because of the rapid movements of your eyes dancing against your eyelids. In this type of sleep, the brain is as active as it is when it is awake. This is when most dreams occur.

4. The Ideal Pattern of Sleep (that you are not following):

Natural light is the way to go. Artificial light messes up your sleep patterns and the body pays for it in the long run. Post-Edison world has come close to banishing the night, but our bodies still live in a world where sun is the only source of light, and have all sorts of troubles processing artificial light induced sleep patters. More and more health problems are being tied to unnatural sleep patterns and Light Pollution.

Example: Electric light at night disrupts your circadian clock, the name given to the natural rhythms that the human body developed over time. When you see enough bright light at night, your brain interprets this as sunlight because it doesn鈥檛 know any better. The lux scale, a measure of the brightness of light, illustrates this point. One lux is equal to the light from a candle ten feet away. A standard 100-watt lightbulb shines at 190 lux, while the lighting in an average office building is 300 lux. The body鈥檚 clock can be reset by any lights stronger than 180 lux, meaning that the hours you spend in your office directly impact your body鈥檚 ability to fall asleep later. That鈥檚 because your body reacts to bright light the same way it does to sunshine, sending out signals to try to keep itself awake and delay the nightly maintenance of cleanup and rebuilding of cells that it does while you are asleep. Too much artificial light can stop the body from releasing melatonin, a hormone that helps regulate sleep.

Poor sleep is just one symptom of an unwound body clock. Circadian rhythms are thought to control as many as 15 percent of our genes. When those genes don鈥檛 function as they should because of the by-products of artificial light, the effects are a rogue鈥檚 gallery of health disorders. Studies have linked depression, cardiovascular disease, diabetes, obesity, and even cancer to overexposure to light at night. Researchers know this, in part, from studying nurses who have spent years working the graveyard shift. One study of 120,000 nurses found that those who worked night shifts were the most likely to develop breast cancer. Another found that nurses who worked at least three night shifts a month for fifteen years had a 35 percent greater chance of developing colon cancer. The increased disease rates could not be explained as a by-product of working in a hospital.

In one of the most intriguing studies, researchers in Israel used satellite photos to chart the level of electric light at night in 147 communities. Then, they placed the satellite photos over maps that showed the distribution of breast cancer cases. Even after controlling for population density, affluence, and other factors that can influence health, there was a significant correlation between exposure to artificial light at night and the number of women who developed the disease. If a woman lived in a place where it was bright enough outside to read a book at midnight, she had a 73 percent higher risk of developing breast cancer than a peer who lived in a neighborhood that remained dark after the sun went down. Researchers think that the increased risk is a result of lower levels of melatonin, which may affect the body鈥檚 production of estrogen.

There could be more discoveries on the horizon that show detrimental health effects caused by artificial light. Researchers are interested in how lights have made us less connected to the changing of the seasons. 鈥淲e鈥檝e deseasonalized ourselves,鈥� Wehr, the sleep researcher, said. 鈥淲e are living in an experiment that is finding out what happens if you expose humans to constant summer day lengths.鈥�

5. What Should Be Your Sleep Schedule?

In the Canterbury Tales, one of the characters in 鈥淭he Squire鈥檚 Tale鈥� wakes up in the early morning following her 鈥渇irst sleep鈥� and then goes back to bed. A fifteenth-century medical book, meanwhile, advised readers to spend the 鈥渇irst sleep鈥� on the right side and after that to lie on their left. And a scholar in England wrote that the time between the 鈥渇irst sleep鈥� and the 鈥渟econd sleep鈥� was the best time for serious study. Sleep, it seems, wasn鈥檛 always the one long block that we consider it today.

This natural mode of sleep sounds weird to the post-Edison world of artificial lights and 6 hour sleep cycles. But it was a fact of life that was once as common as eating breakfast.

For most of human history, every night, people fell asleep not long after the sun went down and stayed that way until sometime after midnight. This was the 鈥渇irst sleep鈥� that kept popping up in the old tales. Once a person woke up, he or she would stay that way for an hour or so before going back to sleep until morning鈥攖he so-called second sleep. The time between the two bouts of sleep was a natural and expected part of the night and, depending on your needs, was spent praying, reading, contemplating your dreams, urinating, or having sex. The last one was perhaps the most popular.

Experiments confirm this tendency: Thomas Wehr, who worked for the National Institute of Mental Health in Bethesda, Maryland, was struck by the idea that the ubiquitous artificial light we see every day could have some unknown effect on our sleep habits. On a whim, he deprived subjects of artificial light for up to fourteen hours a day in hopes of re-creating the lighting conditions common to early humans. Without lightbulbs, televisions, or street lamps, the subjects in his study initially did little more at night than sleep. They spent the first few weeks of the experiment like kids in a candy store, making up for all of the lost sleep that had accumulated from staying out late at night or showing up at work early in the morning. After a few weeks, the subjects were better rested than perhaps at any other time in their lives.

That was when the experiment took a strange turn. Soon, the subjects began to stir a little after midnight, lie awake in bed for an hour or so, and then fall back asleep again. It was the same sort of segmented sleep that Ekirch found in the historical records. While sequestered from artificial light, subjects were shedding the sleep habits they had formed over a lifetime. It was as if their bodies were exercising a muscle they never knew they had. The experiment revealed the innate wiring in the brain, unearthed only after the body was sheltered from modern life. Not long after Wehr published a paper about the study, Ekirch contacted him and revealed his own research findings.

Numerous other studies have shown that splitting sleep into two roughly equal halves is something that our bodies will do if we give them a chance. In places of the world where there isn鈥檛 artificial light鈥攁nd all the things that go with it, like computers, movies, and bad reality TV shows鈥攑eople still sleep this way. In the mid-1960s, anthropologists studying the Tiv culture in central Nigeria found that group members not only practiced segmented sleep, but also used roughly the same terms of first sleep and second sleep.

6. Sleep & Performance

The places where most of the cutting edge research happens and great places to understand the importance of sleep is the Military and Sports fields - areas where human excellence, endurance and performance is pushed to the limits. It stands to reason that these fields notice the effects of sleep problems first. Many sports teams no take great trouble to make sure Light is adjusted to natural cycles, athletes get the full quota of sleep, etc. It s only a matter of time before rest of popular culture catches on - just like many health ides, diets, exercises etc.

7. Sleep Timings Change with Age:

The three basic stages of adulthood鈥攖eenage, middle age, old age鈥攈ave drastically different sleep structures. Teenagers going through puberty find it impossible to fall asleep early and would naturally sleep past ten in the morning if given the choice. Their grandparents often fall asleep early in the night, but then find that they can鈥檛 stay that way for more than three or four hours at a time. Middle-aged adults typically fall between the middle of these two extremes, content to fall asleep early when circumstances allow it, yet able to pull an all-nighter when a work project calls for it. These overlapping shifts could be a way to ensure that someone in the family is always awake and keeping watch, or at least close to it. In this ancient system, it makes sense that older adults who are unable to move as fast as the rest of the family are naturally jumpy, never staying in deep sleep for long, simply because they were the most vulnerable to the unknown.

The other stage - babyhood is a time with no sleep structure at all. They sleep and wake up independent of the light/circadian rhythms. To the eternal consternation of all parents!

So human society is biologically designed to live in different time zones?!

Biology鈥檚 cruel joke goes something like this: As a teenage body goes through puberty, its circadian rhythm essentially shifts three hours backward. Suddenly, going to bed at nine or ten o鈥檆lock at night isn鈥檛 just a drag, but close to a biological impossibility. Studies of teenagers around the globe have found that adolescent brains do not start releasing melatonin until around eleven o鈥檆lock at night and keep pumping out the hormone well past sunrise. Adults, meanwhile, have little-to-no melatonin in their bodies when they wake up. With all that melatonin surging through their bloodstream, teenagers who are forced to be awake before eight in the morning are often barely alert and want nothing more than to give in to their body鈥檚 demands and fall back asleep. Because of the shift in their circadian rhythm, asking a teenager to perform well in a classroom during the early morning is like asking him or her to fly across the country and instantly adjust to the new time zone鈥攁nd then do the same thing every night, for four years. If professional football players had to do that, they would be lucky to win one game.

8. What Sort of Bed Should You Choose?

The biggest question鈥攚hether a bed should be hard or soft鈥攈as a long and confusing history. In 2008, the medical journal Spine seemed to settle the question of firmness. It found that there was little difference in back pain between those who slept on hard mattresses and those who slept on softer ones. How hard a person likes his or her bed is a personal preference and nothing more.

In fact, the bed that you find the most comfortable will most likely be the one that you are already sleeping on.

9. Forget The Bed - Sleep Hygiene Is What You Need

While a comfortable mattress may have little impact when it comes to sleep quality, there are several other aspects of the bedroom that do. Taken together, they form what specialists call sleep hygiene. Most are common sense.

- No coffee before bed / in the evening

- Nor is drinking alcohol before bedtime a smart move. Alcohol may help speed the onset of sleep, but it begins to take its toll during the second half of the night. As the body breaks down the liquid, the alcohol in the bloodstream often leads to an increase in the number of times a person briefly wakes up. This continues until the blood alcohol level returns to zero, thereby preventing the body from getting a full, deep, restorative sleep.

- Developing a few habits with the circadian rhythm in mind will most likely make sleep easier. Adequate exposure to natural light, for instance, will help keep the body鈥檚 clock in sync with the day-night cycle and prime the brain to increase the level of melatonin in the bloodstream, which will then bring on sleepiness around ten o鈥檆lock each night.

- By the same token, bright lights鈥攊ncluding the blue-and-white light that comes from a computer monitor or a television screen鈥攃an deceive the brain, which registers it as daylight. Lying in bed watching a movie on an iPad may be relaxing, but the constant bright light from the screen can make it more difficult for some people to fall asleep afterward.

- Walk around your house and switch off all bright lights half an hour before you sleep, including the TV, the iPad and the laptop.

- Recent studies have shown that body temperature also plays an outsized role in getting decent sleep. Takes steps to have a comfortable temperature: Take a cold shower, etc.

- Even a small increase in the amount of exercise a person gets leads to measurable improvements in the time that it takes to fall asleep and stay that way. This is particularly true for older adults.

10. The Effort Is Worth Your Time

But, though its effects were subtle, devoting extra time and attention to this most basic of human needs impacted nearly every minute of my day. Because I was improving my sleep, I was improving my life. And all it took was treating sleep with the same respect that I already gave other aspects of my health. Just as I wouldn鈥檛 eat a plate of chili-cheese fries every day and expect to continue to fit into my pants, I structured my life around the idea that I couldn鈥檛 get only a few hours of sleep and expect to function properly. If there was one thing that I took away from my talks with experts more than any other, it is that getting a good night鈥檚 sleep takes work.

And that work is worth it. Health, sex, relationships, creativity, memories鈥攁ll of these things that make us who we are depend on the hours we spend each night with our heads on the pillow. By ignoring something that every animal requires, we are left turning to pills that we may not need, experiencing health problems that could be tamed, and pushing our children into sleep-deprived lives that make the already tough years of adolescence more difficult. And yet sleep continues to be forgotten, overlooked, and postponed. Any step鈥攚hether it comes in the form of exercise, therapy, or simply reading a book like this one鈥攖hat helps us to realize the importance of sleep inevitably pushes us toward a better, stronger, and more creative life.

Sleep, in short, makes us the people we want to be. All you have to do is close your eyes.

In addition to all the sleep advice, the best part of the book was the full-fledged dissing of poor Freud: Far from being full of hidden symbols, most dreams were remarkably straightforward and predictable. Dream plots were consistent enough that, just by knowing the cast of characters in a dream, scientists could forecast what would happen with surprising accuracy. - 鈥淣one of Freud鈥檚 claims are true by any of our standards today,鈥� Domhoff said, dipping his spoon into his yogurt. 鈥淚f you look at dreams鈥攊f you really look at them like we have鈥攖hen you see that it鈥檚 all there, out in the open. You don鈥檛 need any of these symbols.鈥� He went on. 鈥淔reudians got all caught up in the idea that there were hidden meanings to our dreams. But their interpretations only worked because we share a system of figurative language and metaphor.鈥�

Too Lengthy for your tastes? Would reading such a big review eat into your sleep quota for today? Find the Quick Summary Here: /review/show...
Profile Image for Nandakishore Mridula.
1,306 reviews2,575 followers
April 4, 2017
Sleep that knits up the raveled sleave of care,
The death of each day鈥檚 life, sore labor鈥檚 bath,
Balm of hurt minds, great nature鈥檚 second course,
Chief nourisher in life鈥檚 feast.

- Macbeth, Act 2, Scene 2

To die, to sleep,
To sleep, perchance to Dream; aye, there's the rub,
For in that sleep of death, what dreams may come,
When we have shuffled off this mortal coil,
Must give us pause.

- Hamlet, Act 3, Scene 1


The Bard has said it all.

----------------------------------

Of late, I am having bouts of anxiety which is preventing me from getting a full night's sleep on weekends. I wake up early in the morning, then toss and turn trying to go back under. Not getting enough sleep makes me anxious, which again contributes to my insomnia, thus creating a negative feedback loop. (Maybe my weekend drink also contributes to the problem - but I'll never admit that!)

I approached this book with the idea that it will enlighten me about sleep. It did 鈥� but not in the way I expected.

This is a book written by a journalist: intensely readable, terrifically informative and covering a lot of areas 鈥� but it鈥檚 not your scholarly tome. It will give you a lot of info on the field of sleep research, all fascinating and new, but largely superficial. It鈥檚 a fun-to-read primer on sleep, and will give you pointers for further study.

Fun Facts I Learned

1.People did not sleep for one continuous stretch at night in the past. They went to sleep not long after sunset and woke up in the middle of the night for an hour or two: then again went to sleep and slept till dawn. These were called the 鈥渇irst sleep鈥� and 鈥渟econd sleep鈥�. The time in-between was used for reading, praying or having sex (and from all reports, it was awesome 鈥� I should have learned this two decades ago, dash it!).

2.Sleeping alone will guarantee a better night鈥檚 rest than sleeping with your partner (my wife adds: 鈥渆specially when your partner sounds like a sawmill in operation鈥�).

3.There are two schools of thought whether infants should be given a separate bed or whether they should sleep with on their parents鈥� bed. There are huge cultural differences involved here. (I don鈥檛 know what鈥檚 good for the kids, but can say from personal experience that children sleeping alone will do wonders for dad鈥檚 sleep).

4.Forget Freud and Jung. There is no symbolism in dreams 鈥� it鈥檚 all rather straightforward. (I don鈥檛 fully agree.)

5.Sleeping on a problem will clear the mind of clutter and allow you to go to the heart of the matter (old hat, that).

6.Lack of sleep is one of the reasons many mistakes committed by the military (could be true). Lack of sleep is one of the reasons for invading soldiers misbehaving with the 鈥渘atives鈥�, especially American GIs in Iraq (a load of bovine excrement).

7.There are cases of murder being committed while a person is sleepwalking, and it has proved a valid defense in many cases of homicide (this was totally new for me 鈥� and somewhat frightening).

8.Teenagers will perform better by going to sleep late at night and waking up late (hopefully, my son won鈥檛 read this review!)

9.The best cure for insomnia is relaxation, not pills. Don鈥檛 think of sleep at all (easier said than done).
Profile Image for Sergei_kalinin.
451 reviews177 followers
June 4, 2014
袨褔械薪褜 褏芯褉芯褕邪褟 薪邪褍褔薪芯-锌芯锌褍谢褟褉薪邪褟 泻薪懈谐邪 芯 褋薪械! 袩芯卸邪谢褍泄, 谐谢邪胁薪芯泄 蟹邪写邪褔械泄 邪胁褌芯褉邪 斜褘谢芯 - 褋芯斜褉邪褌褜 锌芯写 芯写薪芯泄 芯斜谢芯卸泻芯泄 褋邪屑褘械 懈薪褌械褉械褋薪褘械 懈 薪械芯卸懈写邪薪薪褘械 褎邪泻褌褘 芯 锌褉懈褉芯写械 褋薪邪, 褋薪邪斜写懈胁 懈褏 褋邪屑褘屑懈 褋芯胁褉械屑械薪薪褘屑懈 薪邪褍褔薪褘屑懈 泻芯屑屑械薪褌邪褉懈褟屑懈 (褏芯褌褟 胁 泻薪懈谐械 械褋褌褜 懈 褎懈蟹懈芯谢芯谐懈褔械褋泻懈械 "邪蟹褘" 锌褉芯 褋芯薪, 胁褉芯写械 芯锌懈褋邪薪懈褟 褎邪蟹 褋薪邪 懈 锌褉芯褔.). 袟邪写邪褔褍 褝褌褍 芯薪 褉械褕懈谢 锌褉邪泻褌懈褔械褋泻懈 薪邪 "芯褌谢懈褔薪芯" :)

袣薪懈谐邪 褔懈褌邪械褌褋褟 薪邪 芯写薪芯屑 写褘褏邪薪懈懈, 懈 褟 褋械斜褟 锌芯褋褌芯褟薪薪芯 谢芯胁懈谢 薪邪 褌芯屑, 褔褌芯 薪械锌褉芯懈蟹胁芯谢褜薪芯 薪邪褔懈薪邪褞 锌械褉械褋泻邪蟹褘胁邪褌褜 芯泻褉褍卸邪褞褖懈屑 褌芯谢褜泻芯 褔褌芯 褍蟹薪邪薪薪褘械 屑薪芯褞 蟹邪薪懈屑邪褌械谢褜薪褘械 褎邪泻褌褘 懈蟹 泻薪懈谐懈)) ...邪 芯薪懈 褋谢褍褕邪褞褌, 褉邪褋泻褉褘胁 褉芯褌 芯褌 褍写懈胁谢械薪懈褟)))

袨褔械薪褜 泻芯褉芯褌泻芯 芯 褌芯屑, 褔褌芯 懈薪褌械褉械褋薪械薪褜泻芯谐芯 械褋褌褜 胁 泻薪懈谐械:

- 锌褉芯 褌邪泻 薪邪蟹褘胁邪械屑褘泄 "写胁芯泄薪芯泄 褋芯薪", 泻芯褌芯褉褘泄 斜褘谢 薪芯褉屑芯泄 胁 褝锌芯褏褍 写芯 褝谢械泻褌褉懈褔械褋泻芯谐芯 芯褋胁械褖械薪懈褟. 袛械泄褋褌胁懈褌械谢褜薪芯 谢懈 薪邪褕懈 薪芯褉屑邪谢褜薪褘械 薪芯褔薪褘械 斜懈芯褉懈褌屑褘 蟹邪泻谢褞褔邪褞褌褋褟 胁 褌芯屑, 褔褌芯斜褘 锌褉芯褋褘锌邪褌褜褋褟 锌芯褋褉械写懈 薪芯褔懈 懈 薪械泻芯褌芯褉芯械 胁褉械屑褟 斜芯写褉褋褌胁芯胁邪褌褜?

- 锌褉芯 褌芯, 胁褉械写薪芯 懈谢懈 锌芯谢械蟹薪芯 褋锌邪褌褜 胁 芯写薪芯泄 泻褉芯胁邪褌懈 褋褍锌褉褍谐邪屑 懈谢懈 褉芯写懈褌械谢褟屑 胁屑械褋褌械 褋 屑邪谢械薪褜泻懈屑 褉械斜械薪泻芯屑? 效褌芯 懈薪褌械褉械褋薪芯, 芯泻芯薪褔邪褌械谢褜薪芯谐芯 芯褌胁械褌邪 薪邪 褝褌芯褌 胁芯锌褉芯褋 锌芯泻邪 薪械褌, 薪芯 邪胁褌芯褉 锌褉懈胁芯写懈褌 褋芯谢懈写薪褍褞 锌芯写斜芯褉泻褍 写芯胁芯写芯胁 "蟹邪" 懈 "锌褉芯褌懈胁". 孝邪泻 褔褌芯 芯褌胁械褌懈褌褜 薪邪 褝褌芯褌 胁芯锌褉芯褋 屑芯卸薪芯 懈 褋邪屑芯屑褍! ;)

- 芯褔械薪褜 懈褉芯薪懈褔薪邪褟 谐谢邪胁邪 锌褉芯 褌芯谢泻芯胁邪薪懈械 褋薪芯胁懈写械薪懈泄. 袣褉懈褌懈褔薪褘泄 锌芯写褏芯写 邪胁褌芯褉邪 泻 胁芯锌褉芯褋褍 "袗 褔褌芯 屑芯卸械褌 芯蟹薪邪褔邪褌褜 胁芯褌 褝褌芯褌 褋芯薪?" 胁锌芯谢薪械 芯锌褉邪胁写邪薪. 袧芯 泻邪泻 褔械谢芯胁械泻, 泻芯褌芯褉褘泄 褋邪屑 蟹邪薪懈屑邪械褌褋褟 褌芯谢泻芯胁邪薪懈械屑 褋薪芯胁懈写械薪懈泄 (懈 芯写薪芯 胁褉械屑褟 写邪卸械 锌褉芯胁芯写懈谢 芯斜褍褔邪褞褖懈械 褋械屑懈薪邪褉褘 写谢褟 锌褉邪泻褌懈褔械褋泻懈褏 锌褋懈褏芯谢芯谐芯胁 锌芯 邪薪邪谢懈蟹褍 褋薪芯胁懈写械薪懈泄 ;))), 屑芯谐褍 褋泻邪蟹邪褌褜, 褔褌芯 褌械屑邪 褉邪褋泻褉褘褌邪 邪胁褌芯褉芯屑 褋谢邪斜芯胁邪褌芯...

- 锌褉芯 褌芯, 褔褌芯 褋芯薪 褟胁谢褟械褌褋褟 芯褌谢懈褔薪褘屑 屑械褏邪薪懈蟹屑芯屑 写谢褟 褌胁芯褉褔械褋褌胁邪 懈 褉械褕械薪懈褟 褋谢芯卸薪褘褏, "薪械褉械褕邪械屑褘褏" 胁 写薪械胁薪芯械 胁褉械屑褟 锌褉芯斜谢械屑. 袙 褝褌芯泄 谐谢邪胁械 械褋褌褜 褋褋褘谢泻懈 薪邪 褋邪屑褘械 薪芯胁褘械 褝泻褋锌械褉懈屑械薪褌褘 锌芯 褌械屑械 "泻邪泻 屑芯蟹谐 褉邪斜芯褌邪械褌 褋 懈薪褎芯褉屑邪褑懈械泄 胁芯 褋薪械".

袧芯 褌芯 谢懈 邪胁褌芯褉 薪械 褋芯胁褋械屑 胁 褌械屑械 (胁褋褢 卸械 芯薪 - 卸褍褉薪邪谢懈褋褌, 邪 薪械 锌褋懈褏芯谢芯谐 懈谢懈 褎懈蟹懈芯谢芯谐), 褌芯 谢懈 邪屑械褉懈泻邪薪褋泻邪褟 薪邪褍泻邪 薪邪褏芯写懈褌褋褟 胁 褌邪泻芯屑 褋芯褋褌芯褟薪懈懈 :) 协褌芯 褟 泻 褌芯屑褍, 褔褌芯 褍 屑械薪褟 谢懈褔薪芯 斜褘谢芯 褋褌芯泄泻芯械 芯褖褍褖械薪懈械, 褔褌芯 胁褋褢 褝褌芯 褟 褍卸械 褔懈褌邪谢 谐芯写褍, 褝写邪泻 胁... 袧褍, 泻 锌褉懈屑械褉褍, 胁 屑芯薪芯谐褉邪褎懈懈 袪芯褌械薪斜械褉谐邪 袙.小. "袗写邪锌褌懈胁薪邪褟 褎褍薪泻褑懈褟 褋薪邪" ;). 袧芯 褝褌芯 褟 褍卸械, 泻芯薪械褔薪芯, 胁褉械写薪懈褔邪褞... 袣薪懈谐褍 胁褋褢 褉邪胁薪芯 褔懈褌邪褌褜 懈薪褌械褉械褋薪芯, 锌褉芯褋褌芯 谢懈褔薪芯 写谢褟 屑械薪褟 胁 薪械泻芯褌芯褉褘褏 谐谢邪胁泻邪褏 斜褘谢芯 屑邪谢芯 薪芯胁芯泄/芯褉懈谐懈薪邪谢褜薪芯泄 懈薪褎芯褉屑邪褑懈懈.

- 胁褘蟹胁邪谢邪 斜褍褉褞 锌褉芯褌懈胁芯褉械褔懈胁褘褏 褝屑芯褑懈泄 谐谢邪胁邪 锌褉芯 褋芯薪 胁 褝泻褋褌褉械屑邪谢褜薪褘褏 褍褋谢芯胁懈褟褏 - 胁 褔邪褋褌薪芯褋褌懈 锌褉芯 褋芯薪 褍 胁芯械薪薪褘褏 胁 蟹芯薪械 斜芯械胁褘褏 写械泄褋褌胁懈泄! 袨褋芯斜械薪薪芯 胁锌械褔邪褌谢懈谢邪 懈褋褌芯褉懈褟 锌褉芯 褌芯, 蟹薪邪褔懈褌械谢褜薪邪褟 写芯谢褟 邪屑械褉懈泻邪薪褋泻懈褏 锌芯褌械褉褜 胁芯 胁褉械屑褟 "袘褍褉懈 胁 锌褍褋褌褘薪械" 芯斜褗褟褋薪褟械褌褋褟 褌械屑, 褔褌芯 薪械胁褘褋锌邪胁褕懈械褋褟 斜芯泄褑褘 锌褉芯褋褌芯 邪褌邪泻芯胁邪谢懈 褋胁芯懈褏 卸械!

孝械锌械褉褜 胁芯褌 斜械写薪褘械 邪屑械褉懈泻邪薪褑褘 薪邪锌褉褟卸褢薪薪芯 懈褖褍褌 芯褌胁械褌 薪邪 胁芯锌褉芯褋 芯 褌芯屑, 泻邪泻 卸械 懈屑 褋写械谢邪褌褜 胁芯泄薪褍 泻芯屑褎芯褉褌薪芯泄: 褔褌芯斜褘 懈褏 褋芯谢写邪褌褘 胁褋械谐写邪 胁褘褋褘锌邪谢懈褋褜, 薪邪械写邪谢懈褋褜, 懈 褔褌芯斜褘 褋 褌褍邪谢械褌薪芯泄 斜褍屑邪谐芯泄 薪邪 锌芯蟹懈褑懈褟褏 斜褘谢芯 胁褋褢 胁 锌芯褉褟写泻械))))

袙 褝褌芯泄 卸械 谐谢邪胁械 械褋褌褜 褌邪泻卸械 懈薪褎芯褉屑邪褑懈褟 锌褉芯 褋芯胁褉械屑械薪薪褘械 屑械写懈泻邪屑械薪褌褘, 泻芯褌芯褉褘械 锌芯屑芯谐邪褞 "芯斜褏芯写懈褌褜褋褟 斜械蟹 褋薪邪". 袗胁褌芯褉 (泻邪泻 懈 褟) 芯褌薪芯褋懈褌褋褟 泻 褝褌芯屑褍 褋泻械锌褌懈褔械褋泻懈, 薪芯, 斜芯褞褋褜, 褔褌芯 懈褋褋谢械写芯胁邪薪懈褟 胁 褝褌芯屑 薪邪锌褉邪胁谢械薪懈懈 懈写褍褌 锌芯谢薪褘屑 褏芯写芯屑. 袧械 懈褋泻谢褞褔械薪芯, 褔褌芯 褝褌懈 胁芯谢褕械斜薪褘械 锌懈谢褞谢懈 褋泻芯褉芯 薪邪褔薪褍褌 锌褉芯写邪胁邪褌褜褋褟 胁 谢褞斜芯泄 邪锌褌械泻械 :(

- 芯褔械薪褜 褍写懈胁懈胁褕邪褟 屑械薪褟 谐谢邪胁邪 (褉邪薪械械 薪懈褔械谐芯 薪械 蟹薪邪谢 芯斜 褝褌芯屑) 锌褉芯 褍斜懈泄褋褌胁邪, 褋芯胁械褉褕械薪薪褘械 谢褍薪邪褌懈泻邪屑懈. 袩褉芯 褌芯, 褔褌芯 泻邪卸写褘泄 锌褟褌褘泄 褔械谢芯胁械泻 锌械褉懈芯写懈褔械褋泻懈 谢褍薪邪褌懈褌. 袩褉芯 褌芯, 褔褌芯 谢褍薪邪褌懈泻 屑芯卸械褌 褋芯胁械褉褕邪褌褜 写芯胁芯谢褜薪芯 褋谢芯卸薪褍褞 锌芯褋谢械写芯胁邪褌械谢褜薪芯褋褌褜 写械泄褋褌胁懈泄 (胁 褌.褔. 懈 褍斜懈泄褋褌胁芯). 袠 锌褉芯 褌芯, 褔褌芯 谢褍薪邪褌懈蟹屑 褎邪泻褌懈褔械褋泻懈 薪械 谢械褔懈褌褋褟. ...袗 胁芯褌 锌褉邪泻褌懈褔薪褘械 邪屑械褉懈泻邪薪褑褘 褍卸械 薪邪褔懈薪邪褞褌 褎芯褉屑褍谢懈褉芯胁邪褌褜 蟹邪泻芯薪褘 懈 锌褉懈薪褑懈锌褘 褋褍写械斜薪芯泄 锌褉邪泻褌懈泻懈, 褋胁褟蟹邪薪薪褘械 褋 褉邪蟹斜芯褉芯屑 褍斜懈泄褋褌胁, 褋芯胁械褉褕械薪薪褘褏 谢褍薪邪褌懈泻芯胁!

- 写芯胁芯谢褜薪芯 蟹邪斜邪胁薪邪褟 谐谢邪胁邪 锌褉芯 褋褍褌芯褔薪褘械 斜懈芯褉懈褌屑褘 懈 写卸械褌谢邪谐; 锌褉芯 褌芯, 泻邪泻 屑芯卸薪芯 锌芯锌褘褌邪褌褜褋褟 芯斜屑邪薪褍褌褜 斜懈芯褉懈褌屑褘, 薪邪锌褉懈屑械褉, 胁谢懈褟褟 薪邪 胁褘褉邪斜芯褌泻褍 屑械谢邪褌芯薪懈薪邪 褋 锌芯屑芯褖褜褞 懈褋泻褍褋褋褌胁械薪薪芯谐芯 芯褋胁械褖械薪懈褟/蟹邪褌械屑薪械薪懈褟. 袨锌懈褋邪薪褘 锌芯泻邪 谢懈褕褜 胁械褋褜屑邪 褋锌芯褉薪褘械 褝泻褋锌械褉懈屑械薪褌褘, 薪芯 谢褞斜芯锌褘褌薪芯...

- 锌褉芯 褏褉邪锌 (邪锌薪芯褝); 薪邪褋泻芯谢褜泻芯 芯薪 芯锌邪褋械薪 写谢褟 蟹写芯褉芯胁褜褟, 懈 泻邪泻 屑芯卸薪芯 械谐芯 谢械褔懈褌褜

- 锌褉芯 斜械褋褋芯薪薪懈褑褍 懈 锌褉芯 胁褉械写 褋薪芯褌胁芯褉薪芯谐芯. 袨褔械薪褜 锌芯胁械褋械谢懈谢芯 芯锌懈褋邪薪懈械 褋邪屑褘褏 "锌褉芯写胁懈薪褍褌褘褏" 褋芯胁褉械屑械薪薪褘褏 锌懈谢褞谢褜, 泻芯褌芯褉褘械 薪械 褍谢褍褔褕邪褞褌 褋芯薪 薪邪 褋邪屑芯屑 写械谢械, 邪 锌褉芯褋褌芯 褍褌褉芯屑 "胁褘泻谢褞褔邪褞褌" 胁芯褋锌芯屑懈薪邪薪懈褟 芯 褌芯屑, 泻邪泻 褔械谢芯胁械泻 锌褉芯屑褍褔懈谢褋褟 锌芯谢薪芯褔懈, 锌褘褌邪褟褋褜 蟹邪褋薪褍褌褜))))

袪械泻芯屑械薪写邪褑懈懈 芯褌 斜械褋褋芯薪薪懈褑褘 胁褋褢 褌械 卸械 - 谐懈谐懈械薪邪 褋薪邪, 芯斜褖邪褟 褍写芯胁谢械褌胁芯褉械薪薪芯褋褌褜 卸懈蟹薪褜褞 :) 袠蟹 懈薪褌械褉械褋薪芯谐芯: 懈褋锌芯谢褜蟹芯胁邪薪懈械 斜懈芯谢芯谐懈褔械褋泻芯泄 芯斜褉邪褌薪芯泄 褋胁褟蟹懈 (胁 胁懈写械 胁褋褟泻懈褏 谐邪写卸械褌芯胁/锌褉懈谢芯卸械薪懈泄 写谢褟 袩袣 懈谢懈 褋屑邪褉褌褎芯薪邪). 袠写械褟 懈薪褌械褉械褋薪邪褟, 胁 芯褔械褉械写薪芯泄 褉邪蟹 蟹邪谐芯褉械谢褋褟 屑褘褋谢褜褞 泻褍锌懈褌褜 褋械斜械 胁芯谢褕械斜薪褘泄 :) 斜褉邪褋谢械褌懈泻 写谢褟 屑芯薪懈褌芯褉懈薪谐邪 褋薪邪.

袪械蟹褞屑械: 泻薪懈谐褍 胁褋褟褔械褋泻懈 褉械泻芯屑械薪写褍褞! 袗胁褌芯褉 胁 薪邪褔邪谢械 褔械褋褌薪芯 锌褉械写褍锌褉械卸写邪械褌, 褔褌芯 泻薪懈谐邪 薪械 褟胁谢褟械褌褋褟 锌褉邪泻褌懈褔械褋泻懈屑 褉褍泻芯胁芯写褋褌胁芯屑 胁 褋褌懈谢械 "10 褋芯胁械褌芯胁 锌芯 褍谢褍褔褕械薪懈褞 褋薪邪". 袧芯 褝褌芯 芯褌谢懈褔薪邪褟 薪邪褍褔薪芯-锌芯锌褍谢褟褉薪邪褟 泻薪懈谐邪, 谐写械 (械褋谢懈 褍 胁邪褋 械褋褌褜 谐芯谢芯胁邪 薪邪 锌谢械褔邪褏))) 锌褉懈胁械写薪薪褘褏 褎邪泻褌芯胁 懈 懈写械泄 胁锌芯谢薪械 写芯褋褌邪褌芯褔薪芯, 褔褌芯斜褘 褋写械谢邪褌褜 锌褉邪泻褌懈褔械褋泻懈械 胁褘胁芯写褘 "写谢褟 褋械斜褟".






Profile Image for Melora.
576 reviews163 followers
August 6, 2016
I enjoyed this. It gets a little repetitive, though it's not all that long, but for the most part it kept my interest.

Randall decides to research 鈥渟leep鈥� after he walks into a wall, hard, during a sleepwalking incident and, after a night in a sleep lab, is told by his doctor,
鈥�'I'm going to be honest with you. There's a lot that we know about sleep, but there's a lot we don't know. If the sleepwalking continues, let's try some sedatives. But I don't want you to start taking drugs that you don't need. Try to cut down on your stress and see what happens.'鈥�


Unsatisfied with this, Randall says...
鈥滻f my doctor couldn't tell me more about sleep, I reasoned, then I would go out and search for the solution myself....
So began my adventures in the strange science of sleep. I set out to discover everything I could about a period of time that we can only conceive of as an abstraction, a bodily state that we know about but never really experience because, well, we are asleep. Once I started really thinking about sleep for the first time, the questions came in waves. Do men sleep differently than women? Why do we dream? Why is getting children to fall asleep one of the hardest parts of becoming a new parent, and is it this hard for everyone around the world? How come some people snore and others don't? And what makes my body start sleepwalking, and why can't I tell it to stop?鈥�


Randall explores these topics, and others, such as the interplay between science and the legal system when people claim to have been asleep when they committed crimes, and the efforts of coaches and school administrators to improve athletic and academic performances through manipulation of athletes' and students' circadian rhythms. As with many pop- science books, he relies heavily on anecdotes, and I enjoyed the stories. To illustrate the devastating results of sleep deprivation he talks about various military accidents, he gives the story of Jack Nicklaus's golfclub grip 鈥渃risis鈥� to show how the mind can solve problems during sleep, and he tells about Colin Sullivan and his sleep mask machine for the treatment of sleep apnea in a chapter on various sorts of sleeping problems.

One issue which makes Randall's topic a challenging one is that his doctor was not kidding when he said that much is still not understood about sleep. We know it's really important for mental and physical health. We know that sometimes the mind manages to solve problems during sleep which it couldn't seem to solve while awake. We know that dreams replay bits of memories and create mash-ups which sometimes reflect our current preoccupations. But there's also much we don't know. Not only details of the 鈥渨hys鈥� and 鈥渉ows鈥� of the things we do know, but whole areas, such as why many people wake up around 2 a.m. (and Randall goes into how this was, historically, a time when people would wake after their 鈥渇irst sleep鈥� to read or snuggle or whatever for a while before going on to the 鈥渟econd sleep鈥�), why men and women sleep differently, what causes insomnia, etc. So, for instance, while we know that Randall's sleepwalking problem was probably caused by a brain malfunction where the 鈥減aralyzing鈥� hormones were not sent out to his arms and legs before REM sleep began, so that he got up and walked around in response to his dream, we don't know how to fix it, beyond sedatives or physical restraint. As the wife of a calm, gentle man who sometimes gets into loud, angry fights in his dreams, I would have loved for science to have made a bit more progress with this one!

Another thing, and this is minor, but it did annoy me, is that the editing of the book was quite sloppy. Most annoying were 鈥渓ay鈥� vs 鈥渓ie鈥� issues, which occurred throughout. For instance, 鈥淎s subjects laid on their back with their eyes closed each night...鈥� (p 259) and 鈥渆arly humans were at their most defenseless when they laid down on the ground for several hours in the middle of the night鈥� p 244. 鈥淟ay,鈥� for which 鈥渓aid鈥� is a past form, requires an object. There were some other sorts of errors, but this one, given the subject, with people lying down to sleep, or to try to sleep, on a regular basis, was particularly unfortunate. W.W. Norton is a big enough publisher to do better.

Still, an enjoyable look at a subject in which we all have an interest! Randall is an engaging storyteller, and this is an entertaining book. 4 stars.
Profile Image for Orsolya.
643 reviews285 followers
September 5, 2012
Sleep. It is something that children fight against seemingly viewing it as a punishment; while adults wish they had more of the sweet reward. Just how much do scientists truly know about sleep? Honestly: not much. However, David K. Randall shares some of the unique data surrounding the world of sleep in 鈥淒reamland: Adventures in the Strange Science of Sleep鈥�.

鈥淒reamland鈥� is an instant thought-provoking work as it presents theories and questions surrounding the act of sleeping (for example: we may think that sleep is the result of the body鈥檚 need for rest, yet even if you relaxed on a hammock all day; you would still need sleep when the clock struck the late hours). From this introduction on, 鈥淒reamland鈥� moves onto describing various aspects of sleep such as the effects of artificial lights, impact of fatigue on work environments, sleep walking, etc. These subjects are supplemented with research, experiments, and data which are compelling and leave the reader itching for more.

However, for those seeking a deeply scientific work; 鈥淒reamland鈥� will not satisfy. Randall鈥檚 writing style is aligned with a journalistic approach and would fit more snugly into the LA Times, Reader鈥檚 Digest or even Family Circle than with a science periodical. This makes sense as Randall is a senior reporter for Reuters and is a professor of journalism. Don鈥檛 let this deter you, though; Randall clearly procures adamant research from interviews and first-hand participation. Thus, 鈥淒reamland鈥� is accessible for the average reader but quite informative, as well.

The thesis and 鈥減oint鈥� Randall tries to make can some times be lost. Although undeniably interesting, each chapter feels like an overview on the topics. Again, much like an article, Randall cuts the text short and doesn鈥檛 seem to lead to a main theory except that sleep is strange and scientists don鈥檛 know much about it. This results in a slightly chunky feel.

For those readers whom enjoy humor mixed in with science, Randall incorporates comedic relief into the pages and also presents some ideas in a mini-social history format. Although interesting, this method pushes the science further back.

With 鈥淒reamland鈥濃€檚 progression comes an increase in scientific and 鈥渉eavier鈥� content elevating Randall鈥檚 work and offering the reader more substance. However, also noticeable are several cases of repetition in both content and wording which can be frustrating and breaks the focus. Plus, Randall has the habit of straying onto tangents, although he always (eventually) explains the connection.

The ending/conclusion of 鈥淒reamland鈥� was weaker than expected, as it merely wrapped up Randall鈥檚 personal thoughts and experiences with sleep, missing what would be a sum-up on the notes mentioned. Also missing are solid reference notes, although the bibliography is extensive.

鈥淒reamland鈥� is exactly what the title states: an exploration of topics, data, and experiments relating to various facets of sleep (athletic performance, military prowess, sleeping pills, sleep apnea, dreams, etc). Although not 100% scientific, 鈥淒reamland鈥� is creative, gripping, and thought-provoking. One will realize that sleep affects more areas of our daily life than we thought.
Profile Image for Atila Iamarino.
411 reviews4,467 followers
March 6, 2016
Achei que fosse ler mais sobre sonhos e como/porque sonhamos, mas encontrei um livro sobre como e porque dormimos. Muito legal de qualquer forma. Discute o sono em duas metades que t铆nhamos at茅 bem pouco tempo atr谩s e v谩rios outros h谩bitos em rela莽茫o ao sono e ao dormir que est茫o mudando. Tamb茅m descobri que mulheres em geral tem o sono mais leve e mais perturbado pelo marido do que o inverso.
Profile Image for Mauoijenn.
1,129 reviews116 followers
March 9, 2015
I get insomnia a lot. So this book was interesting and insightful. I learned a bit and know understand different sleep disorders. A good book.
Profile Image for Cheryl.
12k reviews472 followers
September 28, 2016
Written by a journalist, so it's easy to enjoy, with lots of tidbits of interest, but light on the science. No agenda, just a bunch of essays about the subject. The take-aways are two: 1. Far too many ppl are not getting enough sleep, including toddlers, teens, soldiers (who are, after all, often teens themselves), and athletes, and 2. more research is needed into a variety of aspects of sleep, including dreaming, circadian rhythms, parasomnias, etc.

3.5 stars and a positive recommendation if you're interested, with the caveat that it really is a light read and probably won't enrich your life very much. Also, the hardcover I read is printed on cheap paper, has only bibliographic notes, and has pictures only as decoration - ideal for an e-reader.
Profile Image for Melissa Prange.
Author听1 book16 followers
August 12, 2012
I wanted to like this book, but I ended up finding it incredibly boring. At times, there was interesting information (like the bit about first and second sleep), but too many of the stories felt like repeats. On and on, the author shows how sleep is important. And I wanted to say: Yes, I understand that, but is there anything else you have to say?
Profile Image for Caren.
493 reviews113 followers
September 7, 2012
This was a moderately interesting look at current research into sleep. There were a few things I hadn't read before, such as that the type of mattress you choose doesn't affect the quality of your sleep; you sleep best on the sort of mattress most familiar to you. I had already known that light affects your Circadian rhythm. While it is helpful to be exposed to natural light in the morning, shun blue screen light (TV, laptop, cell phone) at least an hour before bed. In fact, it is best to have soft light in your home in the evening. After 10 pm, melatonin is released in your body, causing your core body temperature to drop, so it is helpful to sleep in a cool (60-66 degrees Fahrenheit) room. Exercise promotes better sleep, but it doesn't have to be strenuous exercise. In fact, it is more important that your body thinks you have had a good workout than that you have run a marathon. The brain is also tricky when it comes to sleeping pills. They may work largely because they inhibit memory formation of any restless sleep; you may think you have slept better than you actually have, and that matters. The length of sleep gained is apparently not remarkable.
The author makes the provocative statement that people actually sleep better in separate beds. It is probably best to have a little canoodle, then toddle off to individual sleeping quarters for the best quality sleep. He also explores the sleep disruptions brought by a baby in the family. Should you let the infant cry it out, or is the family bed the answer?
We all know that teens prefer to stay up late and sleep in. The world probably functions to the level of people in their prime. At age forty, REM sleep begins to decline. This become noticeable at fifty and is set at age sixty-five. Anthropologists speculate that this was a survival mechanism left from ancient times. When people slept in groups, it was helpful to have someone sleeping lightly or awake, to guard against danger. Older people tend to fall asleep around 9 pm, waking in the wee hours, with less time spent in REM sleep. It makes sense that, as someone ages and slows down, he should sleep lightly in order to be better able to wake up quickly and escape danger.
There is also a sort of afternoon slump, at around 2 pm, conducive to napping. Some cultures have a long (usually two hour) lunch break to accommodate this natural rest cycle.
The author also looks at the dangers of sleep deprivation. For some professions, such as for soldiers or airline pilots, the issue of sleep is of life and death importance, but has only recently been recognized as such.
The author became interested in this topic as a result of his own sleep walking episode. He delves into examples of bizarre sleep walking behavior, such as murder. Is a person responsible for a murder committed while he was asleep? The responses of juries to that question are uneven.
My biggest problems with this book were the lack of an index and the quality of the editing/proofreading. Despite the fact that, in his acknowledgements, he credits two editors and a copyeditor, I found some really glaring errors. For example, on page 111: "Albert Szent-Gyorgyi, a Hungarian scientist who won a Noble Prize in 1937..." and on page 64: "But out of the more than thirty thousand studies he found that looked at human sleep, couples, or marriage, only nine breached the topic of sharing a mattress." These are shortcomings I attribute to the publisher, not the author.
Profile Image for Mohamed Metwally.
775 reviews119 followers
December 22, 2024
Very informative and interesting to read, the book explores the world of sleep, which science is still taking the first steps to unravel its mysteries and we know little about despite going to sleep everyday of our life. It covers many topics like insomnia, dreams, phases and cycles of sleep, circadian rhythm, jet lag and the astonishing issue of sleepwalking.

Going to sleep will never be the same after reading this book...


MiM
Profile Image for Aaron Thibeault.
57 reviews65 followers
December 1, 2012
*A full executive summary of this book is now available here:

We spend up to a third of our lives sleeping, and yet, unless we are not getting enough of it, and/or are experiencing a sleeping disorder of some kind, most of us hardly ever give our sleep a second thought (other than to rue over how much precious time it takes up). Science too largely neglected sleep for the longest time, treating it mainly as a static condition during which the brain was not doing much of anything interesting. However, ever since rapid eye movement (REM) was discovered in the 1950's the science of sleep has really taken off, and the discoveries that have come out of it go to show that this unconscious period is more interesting than we ever could have imagined. It is these discoveries that writer David K. Randall explores in his new book 'Dreamland: Adventures in the Strange Science of Sleep'.

The book is split into 13 chapters, with each chapter (outside of the introduction and conclusion) exploring a separate topic in the world of sleep. In the book we learn about such basics as REM sleep and the 5 stage sleep cycle, as well as the benefits of sleep and the harmful effects of sleep deprivation. It turns out that sleep is instrumental in such things as muscle regeneration, long-term memory formation, skills acquisition, problem-solving, emotional control, and creativity. Dreaming, we find, plays an important role in many of these benefits, thus making it seem far less likely that Freud was correct in thinking that dreams are actually a manifestation of subconscious wish fulfillment.

We also learn that our natural sleeping pattern is set by our circadian clock, and that many of our routines in the modern world run somewhat against this natural pattern. As it turns out, these routines not only have a negative effect on our sleep, but on our waking lives as well. Fortunately, many organizations are now beginning to take these lessons to heart, and are modifying their policies and practices to help ensure that their members are better-rested, so as to lessen the negative effects of fatigue. For instance, high schools are starting later; businesses are allowing their employees to take naps, and hiring on fatigue management consultants to help eliminate the effects of under-rested employees; sports teams are hiring trainers to ensure that their players are getting enough sleep, and to manage the difficulties of inter time-zone travel; and the military is allowing its soldiers more rest during peace time, and also monitoring and managing sleep during combat.

We also learn about the difficulties of, and the controversy surrounding putting your children to bed, and how the practice of co-sleeping (sleeping in the same bad with your infant) is making a come-back. At the same time, the tradition of sleeping in the same bed as your partner is taking a hit, as more and more couples experiment with sleeping in separate beds鈥攁nd even in separate bedrooms.

Last but not least, we learn about sleeping disorders such as sleep apnea (continual waking up due to blockage of the windpipe), and the billion dollar business of treating and controlling this very distressing (and potentially deadly) disorder; sleepwalking, and the bizarre phenomenon of crimes committed while sleepwalking (including child molestation, rape, and even murder)鈥攁s well as how the justice system is dealing with these very troubling cases; and also insomnia, and the sordid history of sleeping pills鈥攁s well as the latest techniques in fighting sleeplessness, including cognitive behavioral therapy.

Fortunately, we also learn that there are several ways to improve our sleep other than with pills or therapy, such as avoiding coffee, alcohol and bright light before bed; getting some regular exercise; turning down the room temperature before bedtime (and/or taking a cool shower); and practicing some breathing techniques to help us fall asleep (one such exercise has you focus on your breathing by thinking 'in' as you inhale, and 'out' as you breathe out).

Virtually every chapter contains a treasure trove of fascinating information about the topic in question, and the author lays it all out in a very clear and interesting way. If you are curious about the world of sleep, and what science has to say about it, then you can't go wrong. A full executive summary of this book is available here:
A podcast discussion of the book is also available.
Profile Image for Emily Mishler.
122 reviews11 followers
October 19, 2012
I won a copy of this book in a goodreads giveaway.

Randall does an excellent job in keeping his book well grounded in research while also keeping in mind that sleep is still a very new and therefore uncertain science. The book is a summary of much of what is currently known and has been theorized about sleep and how it affects the mind and body. A surprisingly engaging read and very easy to understand as Randall writes in a style that accommodates the layman. While a lot of the information is fairly common sense (if one were to actually spend time thinking about a subject like sleep), Randall does bring to light (pardon the pun) a few interesting studies on things like the correlation between artificial light and cancer. Definitely a worthwhile read if you've ever had problems sleeping or just want to know more about that mysterious eight hours when the world spins on while we are oblivious to all that goes on around us.
Profile Image for Melanie.
891 reviews57 followers
September 18, 2012
Easy to read book about lots of different learnings about sleep, some intriguing, others, not so much. For example, Ambien doesn't increase your amount of sleep, but it gives you amnesia so you forget that you were awake all night. Monday Night Football is usually won by a West Coast team when playing against an East Coast team, regardless of home field. Teenagers' circadian rhythms keep them awake at night and asleep until noon or so, but elderly people experience the opposite (early bedtime and early rise time). It's possible to murder someone in your sleep, and the parts of the brain that are first affected by sleep deprivation are the parts of the brain that would let you know you are sleep deprived. There are other studies and experiments discussed in this book as well.
Profile Image for CS.
1,205 reviews
September 16, 2013
Bullet Reviews:

I've always been fascinated with the brain and sleep so when I saw this book, I snapped it up. Unfortunately, I found most of the information dry or stuff I already knew, and what I was really interested in - the brain and dreams - was a small chunk, squeezed next to soldiers and athletes' sleeping patterns. You know, two areas I didn't really give an origami fish about.

For someone looking for the sleep basics, this is a great book. Nice research, covers all the bases with good writing (though oddly enough I wish the author had told more personal anecdotes of his time investigating sleep). I just think I was the wrong person for the book.
Profile Image for Sergey Shishkin.
159 reviews47 followers
November 29, 2019
It's a more journalistic coverage than a scientific survey of current sleep research. The book tells curious stories but practicality doesn't go beyond what is already covered in magazine articles numerous times.

UPDATE: After trying a few things from the book myself, I'm even more skeptical of its revelations, and would take it with even larger grain of salt.

UPDATE 2: Compared to /book/show/3... and /book/show/3..., Dreamland is largely ungrounded and occasionally even incorrect interpretation of actual science.
Profile Image for Kyle.
43 reviews
February 6, 2020
Randall searches for the answers to the many questions we have about sleep, but finds that few are answered and almost none are straight-forward. His explorations into the inner workings of sleep labs to a murder committed in a sleepwalking episode left me more intrigued than I've ever been by the third of my life I spend in my bed.
Profile Image for Ane Ringvold.
27 reviews1 follower
December 29, 2023
Tok meg 6+ 氓r 氓 f氓 lest ut denne. Taler for sitt:/
74 reviews3 followers
March 11, 2013
David Randall takes us into the mysterious and fascinating world of sleep. He takes us through a journey that starts with his personal account of waking up after hitting his leg while sleepwalking, into some of the biology that occurs when we go to sleep, and what effect that sleep and rest has on our ability to function. What Randall does exceptionally well is he writes for the layman, and does not lose a non-scientific reader like myself by including too many scientific details or explanations. Instead, this book is a good combination of the science behind sleep, and commentary on how it affects our lives.

The strongest part of this book is that Randall gives us a good background into sleep science, as well as the way society views sleep. Some of the history is fascinating.. up until a little over a century ago, normal human sleep was divided into two phases: first sleep occurred when people went to bed around sundown, woke up around midnight or a little later and stayed up for an hour just thinking or doing whatever, then slept again until sunrise. When human beings are removed from artificial lights, we normally resume this type of divided sleep pattern.

Randall then takes us into several different areas, talking about what happens in the brain during sleep, what is sleepwalking and other sleeping disorders, and how lack of sleep very seriously affects our ability to function at peak levels. The discussion on sleepwalking, and how people have done very bizarre things in their sleep (including killing people) is fascinating. The discussion on how the law sees people who allegedly commit crimes in their sleep is the most interesting part of the book. His later analysis and commentary on how the profound effects of sleep deprivation is largely overlooked and ignored by society is excellent.

Randall then goes into concept of dreaming, and how Freudian theories on the interpretations of dreams has pretty much been debunked. He goes into modern theories of dreams, and how it's our brain's way of sifting through raw data from our senses, and discarding the useless, but then properly storing away the useful stuff. He includes some very interesting research and discussion.

The latter parts of the book get a little slow, as he goes into certain types of sleeping disorders, and how scientists came up with treatments for sleep apnea using CPAP machines. Despite the slowdown at the end, the book is a quick and pretty interesting read.
226 reviews
August 28, 2012


if this book were a college course, its title would be something like Intro to Sleep Science. The author gives a brief overview of the current state of knowledge about various aspects of sleep with references for those who might want to pursue a given topic more in depth. Dreamland contains lots interesting tidbits about the relationship between sleep and SAT scores, sleep and baseball performance, dreams, and, sadly for mattress manufacturers but good for your wallet, the lack of relationship between a fancy mattress and a good night's sleep. It's a fun quick read, although I would not have missed the unsubtle attempts at humor, which really stuck out in the overall flow of the book.
Profile Image for Book Shark.
783 reviews160 followers
September 14, 2015
Dreamland: Adventures in the Strange Science of Sleep by David K. Randall


鈥淒reamland" is a fun journey through the little known world of sleep. Senior reporter and adjunct professor of journalism at New York University, David K. Randall relays a series of stories, and recent research that will help readers gain a better understanding and appreciation for the impact of sleep. This interesting popular-science 291-page book includes the following thirteen chapters: 1. I Know What You Did Last Night, 2. Light My Fire, 3. Between the Sheets, 4. And Baby Makes Three, 5. What Dreams May Come, 6. Sleep on It, 7. The Weapon 鈥淶鈥�, 8. Bumps in the Night, 9. Game Time, 10. Breathe Easy, 11. Counting Sheep, 12. Mr. Sandman, and Good Night.

Positives:
1. A well-researched and well-written book. A touch of humor, wit and lively research.
2. The fascinating and often overlooked subject of sleep. 鈥淪leep is so important, yet so poorly understood.鈥�
3. The book flows very well. Randall has done a very good job of combining sound research, lively stories and practical information into one interesting and accessible book.
4. Goes through the five stages of sleep. 鈥淭he final stage is REM sleep, so named because of the rapid movements of your eyes dancing against your eyelids. In this type of sleep, the brain is as active as it is when it is awake. This is when most dreams occur.鈥�
5. Ancient beliefs in sleep. 鈥淭he immortal family tree made this clear: Hypnos, the Greek god of sleep, was the twin brother of Thanatos, the god of death, and their mother was the goddess of night.鈥�
6. Book shares many interesting tidbits on sleep. 鈥淢aintaining a healthy sleep schedule is now thought of as one of the best forms of preventative medicine.鈥�
7. Explains the differences between sleep today and of our ancestors, and why that is. 鈥淭oo much artificial light can stop the body from releasing melatonin, a hormone that helps regulate sleep.鈥�
8. Mind-blowing findings. 鈥淚f a woman lived in a place where it was bright enough outside to read a book at midnight, she had a 73 percent higher risk of developing breast cancer than a peer who lived in a neighborhood that remained dark after the sun went down.鈥�
9. A look at fatigue management. 鈥淲ork schedules that recognize the importance of sleep and the constraints of the human body can also save lives.鈥�
10. The changing attitudes of sharing a bed with spouse or loved one explored.
11. Good advice on how to get children to sleep. Different philosophies explored.
12. Investigations into dreams. 鈥淒ement鈥檚 discovery that the brain is as active during REM sleep as it is when a person is awake transformed sleep research.鈥�
13. Dreaming and its relation to creative thought, is there something to it? 鈥淭hat sleep鈥攅specially REM sleep鈥攃ould be a time when the mind solves a problem makes intuitive sense.鈥�
14. The impact of sleep. 鈥淪uccess depended on practice, plus a night of sleep.鈥� 鈥淐ompanies such as Google, Nike, Procter & Gamble, and Cisco Systems have installed designated napping areas in their offices. The idea is that naps may allow engineers and designers to arrive at creative solutions more quickly than they would by staying awake all day.鈥�
15. My favorite chapter, The Weapon 鈥淶鈥�. 鈥淣o drug or procedure has been found to replicate and replace the benefits of sleep. It is unlikely that there ever will be. The Defense Advanced Research Projects Agency鈥攖he Pentagon division responsible for the invention of the Internet and the stealth bomber鈥攃oncluded as much in 2007 after many tries.鈥�
16. The fascinating topic of sleepwalking; a look at court cases. 鈥淲hen someone is sleepwalking, the parts of the brain that control movement and spatial awareness are awake, while the parts of the brain responsible for consciousness are still asleep.鈥�
17. An interesting look at the circadian rhythm. 鈥淏y picking the West Coast team every time, someone would have beaten the point spread 70 percent of the time. For gamblers in Las Vegas, the matchup was as good as found money.鈥�
18. Sleep disorders, sleep apnea. 鈥淎 1992 report by the National Commission on Sleep Disorders estimated that sleep apnea was the cause of thirty-eight thousand fatal heart attacks and strokes in the United States each year.鈥� 鈥淚t was then given the name apnea, from the Greek word for breathless.
19. The truth behind the sleeping industry; pharmaceuticals and mattresses. 鈥淎t the same time, the temperature of the feet and hands increases as the body gives off heat through its periphery, which explains why some people like to have their feet sticking out of the covers as they fall asleep.鈥�
20. A formal bibliography included.


Negatives:
1. Randall acknowledges that sleep science is in its infancy but the book does lack scientific rigor.
2. Lack of supplementary material. Charts, diagrams would have complemented the narrative.
3. Lack citations a must for any popular science book.
4. I was expecting to learn a lot more than I did.
5. Some missed opportunities. I would have added a chapter on how different populations sleep in a chart format.

In summary, this is a solid popular-science book on sleep. It鈥檚 amazing how little we know on such an important part of our lives. Randall does a commendable job of sharing what we know about sleep through stories that combine the latest in research and a touch of wit. Two main quibbles: lack of citations and lack of scientific rigor. A recommended read.

Further recommendations: 鈥淭he Twenty-Four Hour Mind鈥� by Rosalind Cartwright, 鈥淭he Secret World of Sleep鈥� by Penelope A. Lewis, 鈥淭he Secret Life of Sleep鈥� by Kat Duff, 鈥淪leep: A Very Short Introduction鈥� by Steven W. Lockley, 鈥淪leep: A Closer Look at the Damaging Effects of Sleep deprivation on Health and Wellbeing鈥� by Joey Lott, and 鈥淚ncognito鈥� by David Eagleman.
Profile Image for Tahlia.
223 reviews4 followers
April 30, 2018
This was SUCH an interesting book that detailed literally every aspect of sleep.
Highlights for me included
- how the invention of light bulbs/electric lamps changed how we sleep - shops started to stay open later, artificial light affected our body clocks
- how sleep is classified in the legal system, especially in cases where people commit crimes and even MURDER whilst sleepwalking
- insomnia and how different people treat it - including amphetamines and truck drivers
- studies show that there is literally no difference in our quality of sleep whether we sleep on a foam mattress or a concrete floor



Everyone should read this :)
Profile Image for Antonio Gallo.
Author听6 books51 followers
December 28, 2016
Essere o non essere, questo 猫 il problema.
Se sia pi霉 nobile sopportare
le percosse e le ingiurie di una sorte atroce,
oppure prendere le armi contro un mare di guai
e, combattendo, annientarli.
Morire, dormire.
Niente altro.
E dire che col sonno mettiamo fine
al dolore del cuore e ai mille colpi
che la natura della carne ha ereditato
脠 un epilogo da desiderarsi devotamente.
Morire, dormire.
Dormire, forse sognare: ah, c'猫 l'ostacolo,
perch茅 in quel sogno di morte
il pensiero dei sogni che possano venire,
quando ci saremo staccati dal tumulto della vita,
ci rende esistanti.
Altrimenti chi sopporterebbe le frustate e lo scherno del tempo
le ingiurie degli oppressori, le insolenze ...

Quando William Shakespeare fece dire queste famose parole ad Amleto, sapeva benissimo di cosa parlava. Le parole chiave sono quelle del mondo del sonno: dormire, sognare, morire. Qui non ci interessa la vicenda in cui il Principe di Danimarca 猫 coinvolto, ci interessano le tre parole che abbiamo isolato dal famoso monologo. Se dormiamo, sogniamo, se non dormiamo e non sogniamo vuol dire che siamo morti. Da qui non si scappa. Trascorriamo un terzo della nostra vita a dormire.

Se non dormiamo a sufficienza, oppure se soffriamo di disturbi legati al sonno, dobbiamo provvedere. Solo di recente la scienza ha cominciato a dare importanza allo studio del sonno, ritenendolo una condizione statica durante la quale il cervello non farebbe nulla di interessante. Ma le cose sono cambiate da quando negli anni cinquanta venne scoperto il fattore REM, vale a dire il "movimento rapido degli occhi" che avviene durante una fase del sonno, una fase accompagnata, tra altre cose, anche dai sogni. Questo periodo di incoscienza 猫 pi霉 interessante di quanto si possa immaginare.

In questo libro il giornalista scientifico David K. Randall esplora questo mondo tanto misterioso che non a caso il Bardo inglese lo collega alla morte. Lo stesso Randall se n'猫 interessato dopo di essere stato personalmente coinvolto in una esperienza legata al sonno: quando si accorse di essersi ferito perch茅 ... sonnambulo. Il dottore al quale si rivolse non seppe dargli un aiuto utile su queste brutte sorprese durante il suo vagare notturno. Per questa ragione pens貌 bene di scriverci sopra un libro dopo di avere esplorato a fondo la realt脿 del sonno.

Diviso in 13 capitoli, con una introduzione ed una conclusione, Randall esamina i punti fondamentali dello stato REM e i cinque stadi del ciclo del sonno insieme a quelli che sono i benefici del sonno e i pericoli della sua privazione. Si scopre cos矛 che il sonno influisce sui muscoli, sulla formazione della memoria a lungo termine, sull'acquisizione delle abilit脿 dell'individuo, sulla soluzione di problemi, sul controllo emotivo del soggetto che dorme e sulla creativit脿. Ne scaturisce che il sogno ha un ruolo molto importante in ognuna di queste attivit脿 del sonno e si conferma cos矛 la teoria di Freud il quale afferm貌 che i sogni non sono altro che un'appagante manifestazione del subconscio.

Il nostro orologio circadiano regola il sonno. Molte nostre attivit脿 quotidiane diurne vanno in conflitto con questo schema naturale. Esse entrano in conflitto non solo con il sonno, ma anche con le stesse attivit脿 di quando siamo svegli. Fortunatamente molte organizzazioni di lavoro stanno adattando i loro cicli lavorativi a questi bisogni umani in modo da ridurre la fatica e gli stress. Sono specialmente i disordini del sonno a causare problemi quali l'apnea, il sonnambulismo con i relativi crimini ad esso connessi. Sono sorti anche diversi modi per migliorare la qualit脿 del sonno quali ad esempio esercizi fisici, dieta, temperatura della stanza da letto, esercizi di respirazione ecc.

Ne abbiamo fatta di strada da quando gli antichi Greci ritenevano che il sonno arrivasse dopo che il cervello si fosse riempito di sangue e ci si risvegliava dopo quando lo stesso sangue ne fosse uscito. I filosofi del diciannovesimo secolo ritenevano che il cervello potesse andare a dormire soltanto se svuotato da pensieri ambiziosi e stimolanti. David K. Randall studia in profondit脿 i vari modi di dormire, i fenomeni ad esso connessi, come il russare e il sognare, oltre al sonnambulismo di cui gi脿 si 猫 detto e che ha provocato la sua scrittura del libro.

L'autore non manca di mettere in forte evidenza il fatto che, con i ritmi del tutto nuovi e diversi da quelli del passato, il sonno degli uomini nella sua sostanziale qualit脿, 猫 del tutto diversa. E' evidente che il sonno degli antichi 猫 molto diverso da quello di noi moderni per la semplice ragione che diverso 猫 il nostro modo di vivere e di pensare oggi.

Se abbiamo bisogno di dormire di pi霉 e meglio a causa dei ritmi esistenziali moderni, paradossalmente dobbiamo escogitare sistemi migliori per favorire la qualit脿 del sonno. Se un tempo si poteva riposare su un semplice letto di paglia, oggi abbiamo la possibilit脿 di una vasta scelta di letti, materassi e quant'altro possa facilitare il dormire. Resta la necessit脿 assoluta di dormire e di sognare, facendo seguire ai due momenti un felice risveglio terreno che ci tenga lontani dal momento finale quando ci sveglieremo definitivamente da questo sogno che 猫 la vita.
Profile Image for Costen Warner.
142 reviews
October 1, 2022
This was enlightening about much of the science behind sleep. The informal tone of the author was approachable and informative. I hope to take a few nuggets of wisdom to improve my own sleeping habits.
Profile Image for RebL.
540 reviews4 followers
April 21, 2019
This book was recommended to me by an internet stranger in a Facebook group, and it's so good and so fascinating. I read it in chapters at bedtime over several nights and enjoyed it thoroughly. Would recommend to anyone who sleeps.
Profile Image for rey.
241 reviews119 followers
Shelved as 'dnf'
October 22, 2019
i had to dnf this bc i had it checked out for too long :/
Profile Image for Vitaly.
44 reviews
August 30, 2020
袣薪懈谐邪 薪械 薪邪褍褔懈褌 褋锌邪褌褜 锌褉邪胁懈谢褜薪芯. 袧芯 褉邪褋褋泻邪卸械褌 锌芯褔械屑褍 褝褌芯 胁邪卸薪芯. 袛芯斜褉芯泄 胁褋械屑 薪芯褔懈 懈 胁褘褋褘锌邪泄褌械褋褜.
Profile Image for Dora.
18 reviews
September 18, 2020
I loved this book! It was the kind of rare nonfiction book that one cannot put down once it has been started, and it explained sleep and sleep disorders in a way that was understandable. It was split up very well, and all of the research was well-done. Also, it gives a large quantity of information, and is full of interesting stories that pertain to the information given. It did not seem overly formal, but instead one gets to know the author. I would definitely recommend this to anyone interested in sleep, caffeine intake impacting sleep and functioning level, and sleep disorders. Overall, it was one of the best nonfiction books I have read.
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