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" If sleep does not provide a remarkable set of benefits, then it's the biggest mistake the evolutionary process has ever made. "

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" Alcohol is a class of drugs that we call 'the sedatives.' And what you're doing is just knocking your brain out. You're not putting it into natural sleep. "

" I just tell people I'm a dolphin trainer. It's better for everyone. "

" Do you tend to sleep in during the weekends? That usually signals that you're trying to sleep off a debt you've accumulated during the week. "

" If you were not to set an alarm clock, would you sleep past it? If the answer is yes, then there is clearly more sleep that is needed. "

" The gross demonstration of caffeine is that it prevents you from falling asleep. The slightly more nefarious aspect of caffeine is that maybe you can fall asleep, but we know that the depth of deep sleep you're getting if caffeine is still in your system is severely less. "

" It's not clear whether the brain actually is designed to have nightmares or whether this is actually the process going awry. "

" I give myself a non-negotiable eight-hour sleep opportunity every night. "

" That short-sleeping that we're now suffering is a consequence of our lifestyle. It's not a consequence of evolutionary habituation. "

" I think we perhaps are, with sleep, where we were with smoking about 50 years ago, in that we had all of the science, and it was right there for the public discussion, but it's not yet adequately sort of percolated out into policy or even just public wisdom. "

" Our circadian biology, and the insatiable early-morning demands of a post-industrial way of life, denies us the sleep we vitally need. "

" The fact that we don't have that biologic pressure to have highly polyphasic sleep, I think, probably tells us something in terms of, truly, whether it's useful or not. "

" Some people actually sleep better when the significant other is with them. For other couples, it's the opposite. "

" We now know that we imprint information during the day. We sort of - that seed is planted there within the brain during the day. In other words, we learn information. But we also know that that vision that was planted in the brain still remains in the sound of silence, in this - in the dark of night. "

" Stay away from screens, especially those LED screens. Those blue-light emitting devices fool your brain into thinking that it's still daytime, even though it's night-time and you want to get to sleep. "

" When I give lectures, people will wait behind until there is no one around and then tell me quietly, 'I seem to be one of those people who need eight or nine hours' sleep.' It's embarrassing to say it in public. "

" If we didn't need eight hours of sleep and could survive on six, Mother Nature would have done away with 25 percent of our sleep time millions of years ago. Because when you think about it, sleep is an idiotic thing to do. "

" Deep non-REM sleep almost hits the save button on those recently acquired informational pieces so that when you wake up the next morning, you have remembering rather than forgetting. "

" Sleep is the Swiss army knife of health. When sleep is deficient, there is sickness and disease. And when sleep is abundant, there is vitality and health. "

" I have long been puzzled by the entrenched mentality, and often enforced practice, of longer work hours and less sleep. Innumerable policies exist within the workplace regarding smoking, substance abuse, ethical behaviour, and injury and disease prevention. "

" I think many people walk through their lives in an under-slept state not realizing it. It's become this new natural baseline. "

" Your subjective sense of how well you're doing under conditions of sleep deprivation is a miserable predictor of, objectively, how you actually are doing. "

" What is dreaming, and what happens, and are there any real benefits to dreaming? Well, to take a step back, I think it's important to note that dreaming essentially is a time when we all become flagrantly psychotic. "

" It's simply that older adults don't seem to be able to generate sleep efficiently, and that's why they're not getting it. "

" Many business leaders still believe that time on-task equates to productivity. Even in the industrial era of rote factory work, this was untrue. It is a misguided fallacy, and an expensive one, too. Every key facet required for business success will fail when sleep becomes short within an organisation. "

" Below seven hours of sleep, there are objective impairments in the body. Eight hours are recommended. "

" Midnight is the time when we think, 'Well, we should probably send our last email; let me just check Facebook one more time.' "

" People dramatically underestimate how much sleep is linked to all the diseases killing us. We know a lack of sleep is linked to numerous forms of cancer - bowel, prostate, breast cancer. "

" Friends say, 'Shall we go out to dinner at 8?' I say, 'I can't, I'm a 10 A.M.-till-6:30 P.M. kind of guy.' I keep that very regular, no matter what. "

" Dream sleep provides a fascinating neurochemical soothing balm. It is during dream sleep and only during dream sleep when our brain shuts off a stress-related neurochemical called noradrenalin. "

" No one would look at an infant baby asleep, and say 'What a lazy baby!' We know sleeping is non-negotiable for a baby. But that notion is quickly abandoned. "