Eating disorders are a range of psychological conditions that cause unhealthy eating habits to develop. They might start with an obsession with food, body weight, or body shape. In severe cases, eating disorders can cause serious health consequences and may even result in death if left untreated. Binge eating disorder is believed to be one of the most common eating disorders, especially in the United States. It typically begins during adolescence and early adulthood, although it can develop later on.