Eating and mood disorders are two serious illnesses that have been around ever since humans have inhabited the planet. It is only recently that we have had the knowledge to study these complex yet complicated psychiatric disabilities. Such knowledge has lead to advances in neuroimaging may allow physicians to look for subtle anomalies in the brain caused by certain mental disorders. Therefore, as this technology improves, scientists can easily diagnose mood disorders and track the success of therapy. There are three main types of eating disorders. They are anorexia nervosa, bulimia nerv