How is it that anorexics lose so much weight so fast?

Anorexics don't eat: Folks who stop eating (or eat very little) yet continue to exercise at tremendous rates, will tend to lose weight rather dramatically. Unfortunately, their self-image prevents them from seeing themselves as you & i see them: horribly thin sack of bones. This is most common in young women and needs to be addressed medically before negatively impacting their physical health.