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What Happens in Your Body and Brain While You Sleep

NBC NEWS

By Sarah DiGiulio
October 11, 2017

You might think of sleep as the negative time in your day when nothing on your to-do list gets done. Your brain and several other systems in your body see it quite differently.

“Your brain is actually very active during sleep doing important things — it’s not just resting,” says Carl W. Bazil, MD, PhD, the Caitlin Tynan Doyle Profesor of Neurology at Columbia University Medical Center. “And if you don’t get sleep you don’t function on a number of levels the way you should.” [read more]