Anorexia Nervosa — often simply called anorexia — is an eating disorder characterized by an abnormally low body weight, intense fear of gaining weight and a distorted perception of body weight. People with anorexia place a high value on controlling their weight and shape, using extreme efforts that tend to significantly interfere with activities in their lives.
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https://www.youtube.com/watch?v=2Ihr5zMM8jk