Despite what many see in movies or TV, anorexia isn’t purely motivated by skinny desire. Anorexia is the result of a combination of different factors, from psychological factors to cultural pressures. However, anorexia can also be genetic. Anorexia is also linked to other mental disorders such as obsessive-compulsive disorder and attention deficit hyperactivity disorder. That’s why it’s no surprise that many anorexics display perfectionist behavior as well.