That is pure classic male pattern baldness and nothing more. Trust me if you have bad male pattern baldness genes you can be roasted and toasted into high norwoods very early on in your early or mid twenties.
Seriously if other things caused hair loss as men on here often claim wouldnt these same deficiencies and problems cause his beard hair to all fall out? Its male pattern baldness. all body hair requires the same nutrients, and things your head hair uses. Any male with body hair and baldness has male pattern baldness 99 percent of the time short of some crazy infection like ring worm or some weird scaling preventing the hair from growing. Very very rare a man doesnt have male pattern baldness
Also internal health really does not reflect on the outside a lot of times. Someone can look god tier greek god on the outside and have many internal issues like fatty liver, or whatever. They arent that connected just different parts are emphasized internal/external
Use this guy as an example of how big a difference hair makes. This guy would not be that ugly if he had a Norwood 1. Real talk you wouldnt even be posting this.