Anorexia nervosa, often called anorexia, is a type of eating disorder. People with anorexia eat so little that they have unhealthy weight loss and become dangerously thin. They may think they are overweight or fat even when they are underweight or thin. Anorexia affects more girls and women than boys and men.

What does anorexia do to girls?

Along with the lower body weight, girls with anorexia nervosa can lose their menstrual periods (amenorrhea). The loss of periods is associated with osteopenia, early bone loss that can lead to painful fractures. Eating disorders are also linked to other serious health problems, such as kidney disease and heart disease.

How much does an average anorexic girl weigh?

In terms of weight, for a 56 female aged 16.5 years -- the average age of the participants -- this translates to 97.9 pounds for the typical group and 121.8 pounds for the atypical group.

Can a skinny person gain weight?

Here are some healthy ways to gain weight when youre underweight: Eat more frequently. When youre underweight, you may feel full faster. Eat five to six smaller meals during the day rather than two or three large meals.