Quote:
Quote by: Technosoul  Moses can no longer force us to have a day of rest from labor, but we cannot stop our self from falling to sleep. Which can waste a lot of our time. But is it wasted?
Mostly all animals rest, even if they might not dream or whatever (not sure about fish and insects?).
Do we somehow recharge our batteries when snoozing, getting a new supply of energy? If so, from where do we get that energy re-supply just by taking naps? |
It's not wasted.
In delta sleep (stage 3 and 4), our body's chemical supplies are replenished, growth hormones are released in children, and our immune system is fortified. Delta sleep deprivation makes people more susceptible to illness. Memory (storage? sorting?) is usually associated with REM sleep, I believe.