The Science of Sleep: What Really Happens Every Night

Tonight you will spend hours almost entirely cut off from the world, and over a lifetime that adds up to about a third of your life. So what is actually going on while you sleep, and why can't we live without it? We follow one night from start to finish: how adenosine builds sleep pressure and how caffeine only masks it, the body clock first glimpsed in a mimosa plant nearly three hundred years ago, the stages of light, deep and rapid eye movement sleep, what sleep seems to do for memory, emotions and the immune system, what happens when we miss it, and how dolphins, seabirds, bats, elephants and even jellyfish rest. Subscribe to Shuffle Theory for a new random topic every day. #sleep #science #brain #circadianrhythm #biology Chapters 0:00 Intro 0:23 Sleep Pressure 0:47 Your Body Clock 1:47 The Stages of Sleep 2:47 What Sleep Does for You 3:29 Running on Empty 3:47 How Animals Sleep 4:29 Sleep Well Music: "Canon in D for Two Harps" Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 4.0 License, http://creativecommons.org/licenses/b...