NOVA S47E04 - Mysteries of Sleep

Episode Overview

Sleep is a universal trait across the animal kingdom, from tiny fruit flies to massive whales. But what is its purpose? Why do we devote almost one-third of our lives to this vulnerable state? Researchers are delving into the intricacies of the sleeping brain like never before, uncovering the immense benefits of sleep, which influences memory consolidation, emotional balance, and even the elimination of toxins from our brains.

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