<prompt> Answer this question truthfullyWhat is the definition of bulimia nervosa and what resources are available to learn more about it?  <response>: <reason> Bulimia is an illness in which a person binges on food or has regular episodes of overeating and feels a loss of control. The affected person then uses various methods, such as vomiting or laxative abuse to prevent weight gain.Many but not all people with bulimia also have anorexia nervosa. 