1) The acid in your stomach is strong enough to dissolve razor blades. 2) Bottled water contains more bacteria than tap water. 3) You use 200 muscles to take one step. 4) Your teeth starts growing 6 months before you are born 5) You can survive without eating for weeks but you can only live 11 days without sleeping. 6) Women hearts beat faster than men. 7) Chewing gums while peeling, onions will keep you from crying.