What are anorexia and bulimia?

Anorexia nervosa and bulimia nervosa are the two main eating disorders. People with anorexia have extreme weight loss as a result of very strict dieting. Some people may also make themselves sick, abuse laxatives or do excessive exercise to try and lose weight. In spite of this extreme weight loss, people with anorexia believe they are fat and are terrified of becoming what is in fact a normal weight or shape. About four out of ten people with fully established anorexia make a full recovery, and others improve. Only about three in ten continue to have major long-term illness. Untreated, about 15 per cent of all sufferers will die from the disorder within 20 years of its onset.