Well i havent found anything by searching, but i can say it has to do something with hair growth. Speeding for a week and half with a bit sleep and tiny bits of food. You probably already familiar with that funky feel after tweaking thru night especially in bed - whole room smells like anal sex, you're all smelly, sweaty, sticky and dirty. And i mean with bits of dust and shit like that. Watching myself 7 in da morning with my hair greasy hair i just have to fresh up. So i wash my hair almost every morning, so i dont know how much washing affects growth but it did grew a fair bit. 3-4 inches at most. It seems to be rly fast for that ammount of hair. Apart from my head, i recently shaved my genitals(JUST had to DO it..Dont ask)it grew 4 centimeters after a week of tweaking. My moustache/beard grows really long after fresh shave, while not being on speed. But after few days spuning out without sleep it grows back twice as thick. Amps playing a role on it if you ask me, but i cant assure you and i've tryed to do it myself with no luck.