What are the Causes of Anorexia
It's not known specifically what causes some people to develop anorexia. As with many diseases, it's likely a combination of biological, psychological and sociocultural factors.
- Biological. Some people may be genetically vulnerable to developing anorexia. Young women with a biological sister or mother with an eating disorder are at higher risk, for example, suggesting a possible genetic link. Studies of twins also support that idea. However, it's not clear specifically how genetics may play a role. It may be that some people have a genetic tendency toward perfectionism, sensitivity and perseverance, all traits associated with anorexia. There's also some evidence that serotonin — one of the brain chemicals involved in depression — may play a role in anorexia.
- Psychological. People with anorexia may have psychological and emotional characteristics that contribute to anorexia. They may have low self-worth, for instance. They may have obsessive-compulsive personality traits that make it easier to stick to strict diets and forgo food despite being hungry. They may have an extreme drive for perfectionism, which means they may never think they're thin enough.
- Sociocultural. Modern Western culture often cultivates and reinforces a desire for thinness. The media are splashed with images of waif-like models and actors. Success and worth are often equated with being thin. Peer pressure may fuel the desire to be thin, particularly among young girls. However, anorexia and other eating disorders existed centuries ago, suggesting that sociocultural values aren't solely responsible.