11/7/2023 0 Comments Matthew walker sleep expertSo if I were to take a human being and deprive them of sleep for one night, so that they've lost eight hours of sleep and then I give them all of the recovery sleep that they want on a second, a third, even a fourth night, they do sleep longer but they never get back that full eight hours that they've lost.Īnd we can ask then, "Why isn't there some kind of a credit system in the brain? Why don't we have a cell that can actually store up that sleep?"īecause there is precedent for this. So you can't short sleep during the week and then try to binge and oversleep at the weekend. So sleep is an all-or-nothing event in that sense. You can't accumulate a debt and then hope to pay it off at some later point in time. Walker: And the answer, unfortunately, is no. You should also try to avoid naps late in the afternoon so that you wake up at least after you finish the nap and still have enough time to build up that sleepiness, that sleep pressure so you can get to sleep in the evening. Different stages of sleep actually give you different types of brain and body benefits.īut if you want to avoid that grogginess that you can often have after a long sleep, then you should perhaps avoid naps that are longer than maybe 40 or 50 minutes in length. The ideal nap depends on what you want from that nap. So the advice would be if you don't struggle with your sleep and you can nap regularly, then naps are just fine.īut if you do find it difficult to fall asleep or stay asleep at night, then you should avoid naps and try and build up that healthy sleepiness in the evening. So if you take a nap during the day, especially if you take it too late in the afternoon, you will actually release some of that sleepiness and it will make it that much more difficult to fall asleep and stay asleep soundly throughout the night. And when we sleep, we actually release that sleepiness, almost like a valve on a pressure cooker, so that we wake up the next morning feeling refreshed. So that when you try to fall asleep at night, you'll fall asleep quickly and then you'll stay asleep. But naps can actually be a double-edged sword because whilst we're awake during the day, we're building up sleepiness or sleep pressure. Should we actually be taking naps during the day? Well, we certainly know from evidence in my own sleep center and that of many other scientists that naps can give you benefits for both your brain and your body. I am a professor of neuroscience and psychology at the University of California Berkeley and I am the author of the book, " Why We Sleep." Matthew Walker: My name is Matthew Walker. Sleep expert Matthew Walker explains how naps can negatively impact your body. Account icon An icon in the shape of a person's head and shoulders.
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