Why do we Sleep? [Science Video]
Channel: Things We Don't Know
Date: 2013-12-19

Sleeping is one of the most basic functions of our bodies. But why do we do it? We've teamed up with Es Einsteinium to explore the science behind this surprisingly difficult question.

A full transcript complete with references to the science being presented here is available at http://blog.thingswedontknow.com/2013/12/why-do-we-sleep.html

Backing music:
Perspectives - Kevin MacLeod (incompetech.com) 
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/