Anorexia is an eating disorder in which individuals obsess about their weight. People with this disorder have a tremendous fear of gaining weight. In order to maintain their ideal weight, they will often starve themselves and exercise excessively. It is characterized by extreme thinness and dangerously low body weight. Unfortunately, no matter how much weight they lose, these individuals are never satisfied with their appearance. In addition, many people with anorexia are in self-denial about their problem. Therefore, it is imperative for their loved ones to recognize the following warning signs and seek medical and psychological help for them as soon as possible.