first of all have short hair on ur head !n Don't use too much shampoo, or dilute it in water before putting on your hair ! n also shave ur head once or twice if u do not have any important occasions nearby (3-4 months) in ur family :)!
Wish I knew! I am 56 now and just this year, I've noticed my hair is really getting thin on top and I'm getting excessive hair fallout! Maybe somebody on here will give us the answer!