4. Anorexia Nervosa

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This condition tops the list as the most recognized eating disorder among the general public and is believed to affect as many as 1 percent of all teenaged girls. It can sometimes affect pre-teen girls as well, with some sufferers being as young as eight years old. The main symptom that characterizes this condition is a lack of desire to eat. In most cases this condition is treatable, but there is an abnormally high risk of relapse which may always pose a danger. Some sufferers have literally starved themselves to death in the quest to avoid putting on weight or appearing “fat.”