The Future of Sleep: A Discussion with Derk-Jan Dijk
New Books in Neuroscience
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The Nature of Sleep Through a Life Cycle
Sicadian rhythmicity is present in all cultures. Of course, there are differences in sleep timing - some people may get up slightly earlier than in other cultures. Sleep can be subdivided in two different stages, or two different states: non rapid eye movement sleep and rapid eye movementSleep. But in very young humans, there is a lot of rapid eye movementsleep. And the contribution of that sleep state to total sleep time becomes less as the brain er maturos. S we grow older and we become toddlers and children, sleep duration er changes.
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