i know what it is, but what does it do exactly, like does it send a chemical or sumthin. like when i get mad or upset my adrenaline goes nuts. lol,earlier i was mad and i just pierced my nose, and it didn't hurt at all, lol, or like when u get in a fight and you get punched or whatever it doesn't hurt at all, untill the next day, u know? lol, anyways, so what is it exactly???
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