bald patches on the head of a young man. the concept of the increased hormone dihydrotestosterone. weakening of hair follicles

background bald balding baldness brow caucasian closeup completely concepts dihydrotestosterone failure favus follicles forehead frontal hair hairline hairstyle head health healthcare high horizontal hormone human lateral lifestyle locks loss male man medicine men nape one patch patches people person receding replacement showing studio temple temporal transplant transplantation unrecognizable