@books_kitob why we sleep

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ltner, for inspiring me to write. part 1 this thing called sleep chapter 1 to sleep . . . do you think you got enough sleep this past week? can you recall the last time you woke up without an alarm clock feeling refreshed, not needing caffeine? if the answer to either of these questions is “no,” you are not alone. two-thirds of adults throughout all developed nations fail to obtain the recommended eight hours of nightly sleep.i i doubt you are surprised by this fact, but you may be surprised by the consequences. routinely sleeping less than six or seven hours a night demolishes your immune system, more than doubling your risk of cancer. insufficient sleep is a key lifestyle factor determining whether or not you will develop alzheimer’s disease. inadequate sleep—even moderate reductions for just one week— disrupts blood sugar levels so profoundly that you would be classified …

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“i’ll sleep when i’m dead” is therefore unfortunate. adopt this mind-set, and you will be dead sooner and the quality of that (shorter) life will be worse. the elastic band of sleep deprivation can stretch only so far before it snaps. sadly, human beings are in fact the only species that will deliberately deprive themselves of sleep without legitimate gain. every component of wellness, and countless seams of societal fabric, are being eroded by our costly state of sleep neglect: human and financial alike. so much so that the world health organization (who) has now declared a sleep loss epidemic throughout industrialized nations.ii it is no coincidence that countries where sleep time has declined most dramatically over the past century, such as the us, the uk, japan, and south korea, and several in western europe, are also those suffering the greatest increase in rates of the aforementioned physical diseases and …

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tor vehicle without having had sufficient sleep. drowsy driving is the cause of hundreds of thousands of traffic accidents and fatalities each year. and here, it is not only the life of the sleep-deprived individuals that is at risk, but the lives of those around them. tragically, one person dies in a traffic accident every hour in the united states due to a fatigue-related error. it is disquieting to learn that vehicular accidents caused by drowsy driving exceed those caused by alcohol and drugs combined. society’s apathy toward sleep has, in part, been caused by the historic failure of science to explain why we need it. sleep remained one of the last great biological mysteries. all of the mighty problem-solving methods in science—genetics, molecular biology, and high-powered digital technology—have been unable to unlock the stubborn vault of sleep. minds of the most stringent kind, including nobel prize–winner francis crick, who …

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reality: doctors and scientists could not give you a consistent or complete answer as to why we sleep. consider that we have known the functions of the three other basic drives in life—to eat, to drink, and to reproduce—for many tens if not hundreds of years now. yet the fourth main biological drive, common across the entire animal kingdom—the drive to sleep—has continued to elude science for millennia. addressing the question of why we sleep from an evolutionary perspective only compounds the mystery. no matter what vantage point you take, sleep would appear to be the most foolish of biological phenomena. when you are asleep, you cannot gather food. you cannot socialize. you cannot find a mate and reproduce. you cannot nurture or protect your offspring. worse still, sleep leaves you vulnerable to predation. sleep is surely one of the most puzzling of all human behaviors. on any one of …

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thank you for downloading this simon & schuster ebook. get a free ebook when you join our mailing list. plus, get updates on new releases, deals, recommended reads, and more from simon & schuster. click below to sign up and see terms and conditions. click here to sign up already a subscriber? provide your email again so we can register this ebook and send you more of what you like to read. you will continue to receive exclusive offers in your inbox. http://www.simonandschuster.com/ebook-signup/front/9781501144332 contents – part 1 – this thing called sleep chapter 1 to sleep . . . chapter 2 caffeine, jet lag, and melatonin: losing and gaining control of your sleep rhythm chapter 3 defining and generating sleep: …

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