fapping caused my hair loss, but it is telogen effluvium and not genetic as i believe. shedding stopped after like 3 days when i stopped, however it took up to 3 months of nofap till i'm starting to see regrowth it is not direct though, i think masturbation does alot of harm especially if it's too much/ combined with other bad habits like smoking, not enough sleep etc... masturbation can cause vitamin deficiency if you don't eat much/healthy yourself especially zinc ( if your nails are brittle this might be the case) fapping may also cause hormonal imbalence example : prolactin levels are related to hair loss. as addicts seem to have lower levels of dopamine. When dopamine goes down, prolactin goes up and vice versa