Eating disorders are defined as eating habits that are harmful to an individual's health and involve issues with food and weight. The three most common types are anorexia nervosa, bulimia nervosa, and binge eating disorder, each characterized by distinct patterns of unhealthy eating and weight control behaviors. While eating disorders can affect people of any gender, age, or background, contributing factors may include feeling out of control, depression, abuse, and pressure from media and peers. Left untreated, eating disorders can cause serious physical and emotional problems. Seeking help from medical and mental health professionals is important for recovery.