Ted talk: Why do we sleep?

Hi guys! Have you ever asked why do we sleep? Are you a person who likes sleep? Or in other way, think you that sleep is a waste of time? I like sleep so much, and many times I asked why do we sleep.

That's because I have chosen this Ted talk done by Russel foster: Why do wee sleep? He talks about the importance of sleep and the consequences of it.

To watch the Ted talk, click here

Rusell Foster. Why do we sleep?