A: When someone has a distorted view of their bodies, and how they look, people can develop an eating disorder. The two most common eating disorders are anorexia nervosa and bulimia. (However, there are other things people do to their bodies - like take a lot of diet pills, exercise compulsively, etc. that are also dangerous.)

People with anorexia nervosa, or "anorexia," become obsessed with how much food they eat. They may be rail thin, but when they look in the mirror, they think they're fat. So they diet until they are eating next to nothing.

Anorexics are often really stressed about other things in their lives -- like school or a relationship -- and feel that if they can control what they eat, they can control the other problems, too.

People with anorexia might take tons of diet pills, use laxatives without really needing them, or stop eating altogether at certain times. They might also make themselves vomit because they're so afraid of gaining weight.

People who are bulimic gorge, eating all kinds of stuff, and then vomit or take laxatives to get the food out of their bodies quickly. It's called "binge and purge."

Bulimics often use food to calm emotions and feel better about themselves. It doesn't work. Some anorexic people will also have periods when they are bulimic as well.

Eating disorders are caused by complex emotions, usually having to do with how people feel about themselves. Some think eating disorders are something a person can "just snap out of." Not true.

People with eating disorders need counseling and support from their families and friends. That support includes not judging the person, and being patient and understanding as they work through their disease.

If you or someone you know has an eating disorder, please visit the resource section on this page. Also, talk with a trusted adult - a parent, teacher, school counselor, coach, neighbor, or other relative, for example. Ask for help. Left untreated, eating disorders can kill.