MY HUSBAND HAS GREY SPOTS ALL OVER HIS HEAD. HE GOT THEM AROUND 16, AND IS NOW 29. THEY ARE ABOUT THE SAME SIZE AS GOLF BALLS. ALL HIS STUDENTS CALL HIM SOCCER BALL! PLEASE HELP ME UNDERSTAND WHAT HAPPENED. HIS EYE COLOR IS NOT EFFECTED, NOR IS HIS SKIN COLOR, JUST HIS HAIR! PLEASE HELP THANKS!!