Heathasbeenusedtocontrolhairforhundredsofyears.Buthowmu...
問題詳情:Heathasbeenusedtocontrolhairforhundredsofyears.Buthowmuchistoomuch?Ifyou’veeveropenedaveryhotoven,youknowthatheatcanburnyoureyebrowsoffyourfaceveryquickly.AscientistfromPurdueUniversityinIndi...