James Duncan Davidson/TED
What do we know about one of our most basic needs: sleep? Not a lot, says circadian neuroscientist Russell Foster. We know we need to do it to stay alive, but much about it remains a mystery.
Read more at NPR.org.
Scientists still debate the exact function of sleep, with some arguing that it aids our memory, while others argue that it helps to conserve energy, and still other argue that it is needed to discharge our emotions. A new study published in Science presents data suggesting that during sleep harmful toxins are cleared from our brains, which might prevent diseases like Alzheimer’s. Read more at NPR’s coverage: Brains Sweep Themselves Clean of Toxins During Sleep