Anorexia Recovery & Treatment

I realize that anorexia can cause things like fainting spells and dizziness, but it’s the PHYSICAL APPEARANCE that I’m interested in… If one were to become “anorexic” (or eat less than 600 calories a day) then would things like hair, nails, and skin be affected? Or just the shape/weight? Thanks!

Ever wonder this? Obviously anorexia nervosa is a recognized mental disorder that can lead to death. But, why isn’t extreme bodybuilding? You know where men take steroids and looking so unaturally buff and extremely unhealthy. I mean obviously anorexia nervosa and exteme bodybuilding are caused by emotional, biological, and environmental factors. But I just don’t understand why extreme body building isn’t considered a mental disorder? Is it because you don’t have a chance of dying, unlike anorexia?