This post was written by Gia Marson, Ed.D. Eating less than your body needs can be harmful—it can interfere with your health, relationships, and development. Worst of all, it can be life-threatening.

Anorexia can affect nearly every organ and body system. Over time, it can lead to endocrine, digestive, heart, fertility, and kidney issues. In the long term, anorexia can also affect relationships, ...