HI. i started masturbating at the age of 13 due to misguidance of friends..and couldnt controll my mind till 24 yrs. now i got married. and i see lot of problems. 1. my 50 % hairs become white on head and also i got 2-3 white hairs on beared. and i feel that before my penis got erected when i had some feeling in my mind.but now no errection..but yest at time of sex i got erection (also a victim to pre ejaculation)..i feel i also got low sperm production ….can any one help please.