Many anorexics (anorexia nervosa) do irreparable harm to their bodies through malnutrition - and many die due to organ failure - just like bulimics often destroy heart tissue by purging stomach acid, which eats through their esophagus and into the protective heart tissue where it migrates into the heart and kills myocardial cells. Both eating disorders are due to a dysfunction in how the female (the ratio of males to females suffering from anorexia nervosa is 1:10) sees her body - which is a distorted evaluation. The primary cause of the condition has to do with establishing "control" over oneself - usually if the female is suffering from trauma that makes her feel out if control. Anorexia Nervosa does not eliminate appetite - fighting the urge to eat provides an albeit twisted, but effective means to the sufferer that she has control over her own body. The condition typically attacks hormone balance, retards growth, causes cessation of menses, weakens bones, lowers cognitive ability, drops potassium (used to make ATP - the energy molecule), and wreaks havoc with electrolyte balance witch will ultimately cause renal problems or even failure and death.