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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.
Matthew Walker
NatureMotherTimeSleepSurvive
I give myself a non-negotiable eight-hour sleep opportunity every night.
OpportunityMyselfSleepNightGive
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.
DinnerFriendsGoSayKindMatter
Sleep is Mother Nature's best effort yet to counter death.
NatureMotherBestDeathSleep
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.
SleepPeopleKnowUnderestimateUs
Below seven hours of sleep, there are objective impairments in the body. Eight hours are recommended.
SleepBodyHoursSevenEightBelow
Back in the 1940s, people were sleeping on average just a little bit over eight hours a night, and now, in the modern age, we're down to around 6.7, 6.8 hours a night.
AgePeopleNightBackDownSleeping
Midnight is the time when we think, 'Well, we should probably send our last email; let me just check Facebook one more time.'
TimeMeThinkMoreEmailCheck
If you look at how humans tend to want to sleep, it seems to be either, you know, sort of a monophasic way or at least a biphasic way, where there's, perhaps, a long bout during the night and then maybe a siesta-like pattern during the day.
DaySleepNightLongYouLook
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.
SleepThinkPressureSomethingUs
As you try to tweak your sleep one way or the other, you might be, you might be doing great - you might do better at remembering details of an event, but you might end up being poorer at abstracting the gist or the rules associated with it.
GreatSleepEndDetailsBetterYou
It's not that we simply get old, and memory starts to go, and sleep starts to deteriorate. But those two things actually are significantly interrelated.
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