Why Do We Sleep?

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Hi, I'm Dr. Michael Bruce, the sleep doctor. I get to asked this question all the time, why do we sleep? Would you believe me if I told you we really don't know. It's pretty amazing with all the scientific research that's going on. There are a couple of theories that are out there kind of the restoration theories where I need to recharge my batteries.

There's also the memory consolidation theory where I'm moving information from my short-term memory to my long-term memory. If I had to guess, I'd say that there're multiple reasons why we sleep yet science still hasn't been able to tell me exactly what's going on.