Why Is Sleep Necessary?

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate …and how did it evolve in the first place? Tweet ⇒ http://bit.ly/OKTBSsleep Share on FB ⇒ http://bit.ly/OKTBSsleepFB ↓ More info and sources below ↓ Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place. Follow me to The Good Stuff’s sleep playlist: https://youtu.be/RHCcM7LyZdc?list=PLsRLUurFnvvUCysDQrFvGL0nxN6Eha93s Also check out BrainCraft: https://youtu.be/yv-XNKK9laE https://youtu.be/ZPpvS9wDOcA For more, read: “Dreamland: Adventures in the Strange Science of Sleep” by David K. Randall http://amzn.to/1MB38dt "The Universal Pastime: Sleep and Rest Explained" by Dr Richard Horner http://amzn.com/B00NT9O60O Cool research on melatonin in sea worm larvae: http://www.nytimes.com/2014/10/02/science/the-evolution-of-sleep-700-million-years-of-melatonin.html Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below! Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instagram.com/jtotheizzoe Follow on Snapchat: YoDrJoe ----------------- It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D. Follow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook: http://www.facebook.com/itsokaytobesmart For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen Inc. Kate Eads - Producer Andrew Matthews - Editing/Motion Graphics/Animation Arts & Labor - Motion Graphics Katie Graham - Camera John Knudsen - Gaffer Theme music: “Ouroboros” by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks (unless otherwise noted)​ Learn more about your ad choices. Visit megaphone.fm/adchoices