Why Does Hair Turn Gray with Old Age? Click here to see more videos: http://www.m301.me/lifenoggin Life Noggin is a weekly animated educational series. Whether it's science, pop culture, history or art, we explore it all and have a ton of fun doing it. Follow Us! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin https://www.LifeNoggin Life Noggin Team: Animation & Designed by: http://www.jmccartney3d.com/ Voiced by: http://youtube.com/patdoesit Produced by: http://www.IanDokie.com Written by: https://www.youtube.com/user/AwkwardAdolescents Sources: http://www.loc.gov/rr/scitech/mysteries/grayhair.html http://www.livescience.com/14643-scientists-uncover-secrets-hair-turns-gray.html