Living Forever: Will It Ever Be Possible?
Sidenote by AsapSCIENCE
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Why Can't You Tickle Yourself?
Sarah Bellum is the part of your brain that processes movement. When you're tickling yourself, they found in your brain it essentially just stops the firing to continue past the Sarah Bellum. And there's two types of tickling. One's called nismesis, which is light touch and feathery, which I hate.
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