Anorexia nervosa (say "an-uh-RECK-see-uh nur-VOH-suh" is a type of eating disorder. People who have anorexia have an intense fear of gaining weight. They severely limit the amount of food they eat and can become dangerously thin as in appearing very lekpa (as most Nigerians would say).
What is Anorexia Nervosa?

According to the National Health Service UK (NHS), Anorexia nervosa is a serious mental health condition. It is an eating disorder in which people keep their body weight as low as possible.
Anorexia affects both the body and the mind. It may start as dieting, but it gets out of control. You think about food, dieting, and weight all the time, more like an "Obsessive Compulsive Disorder" (OCD) to stay skinny. You have a distorted body image. Other people say you are too thin, but when you look in the mirror, you see your body as overweight.

Find out signs and symptoms and more on this very common eating disorder here - http://diet234.com/anorexia-nervosa-dietary-management/