Anorexia can refer to:

• Anorexia nervosa, an eating disorder in which people do not eat correctly due to the obsessive fear of weight gain.
• Anorexia mirabilis, referring almost exclusively to women and girls of the Middle Ages who would starve themselves, sometimes to the death, in the name of God.
• Anorexia (symptom), the general symptom of decreased appetite.
• Sexual anorexia, a term used to describe a lack of "appetite" for sex.
• Anorexia Nervosa (band), a French symphonic black metal band.
• Anorexia Nervosa, a two-part album consisting of Anorexia and Nervosa, by Showbread.

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