Idk but I know I’ve always had really long hair and never noticed excessive hair falling out until about 2 years ago, just the typical amount. When I noticed more than usual falling out I immediately went to a derm to try to get Finasteride cause I was scared shitless but he refused likely because I didn’t show any signs of balding yet. Cut to 2 years later I’ve have major hair falling out every day since then and now you can see the diffuse thinning. So I’d say it’s not bullshit.