This is a two parter:
1. How soon should I start taking supplements like saw palmetto for hair loss? I'm recovering from anorexia and I get a lot of hair in the drain after a shower but there's no visible bald spots on my head. Is it just something I have to wait out? I've read it can kickstart male pattern baldness but I don't know how true that is, which leads me to my second question

2. How do hair genetics work? My father and most of his brothers either went almost completely bald or have very thin hair on top. Their father (my grandfather) however, didn't go bald like most of his kids did. Sure, his hair got thinner as he got older, but not like his kids. I thought baldness came from your father? Does it skip generations?