Humans are naturally curious beings, so I have a lot of questions to pose.
Why does your voice change when you inhale helium?
How can you get killed if you inhale too much?
I also don't really understand the Brownian Motion, could someone explain it in depth, please?
And, although this is unrelated, how does the nerves understand what you want to do? Wouldn't you have to think about what you are going to do before you do it? Or is it like a super fast game of ping pong, where with every tiny movement, your brain sends super fast messages to the nerves and they have to respond/obey?
Also, if it is like ping pong, how does your brain communicate with your nerves when you are asleep? Isn't your brain supposed to switch off when you go to sleep? Or when you roll over subconsciously, are you not fully asleep?
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