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What exactly happens to your body when you fall asleep and why do we need to?
What makes the sky blue?
What exactly happens to your body when you fall asleep and why do we need to?
What makes the sky blue?
> What exactly should i type in to get the answers?
"Why do I need sleep" and "Why is the sky blue" may yield results, no?
> What makes the sky blue?
The sky appears blue because as white light from the sun enters the atomsphere the blue part is refracted down to the earth. In the evenings when the sun is low in the sky the light from the sun travels through more atmosphere, so most of the blue part is refracted which is why the sky then appears to be red or purple.
Something like that, anyways.
> I was wondering if anyone could tell me...
>
> What exactly happens to your body when you fall asleep and why do we
> need to?
If you sleep properly you get to REM sleep where your eyes rapidly move and your brain does some file processing.
> What makes the sky blue?
Gas
> Doesn't the "sleepy" feeling occur when a type of chemical
> rushes into a part of our brain? I remember a program on it a while
> ago, they were talking about the possibility of making a tablet that
> counteracted the chemical so we'd never need to sleep. Which is
> incredibly shity, if you think about it.
And you'd probably eventually go crazy...