4 ms·

Well that is a time where a lot of people lose their hair color.

• liber8 14y ago
  People lose their hair color due (primarily) to a lack of catalase, which normally removes hydrogen peroxide. It is now thought that much of this work is done during sleep. So, assuming this theory is true, a lack of sleep (an effect every president has mentioned) does cause people to go gray.
  • KMag 14y ago
    That makes sense. Several of my friends in college developed grey patches in their hair that went away shortly after graduation.