The throat is constantly sore or inflamed and may bleed. Laxative abuse can lead to irritation of the colon, and diuretic abuse can cause kidney problems. Dehydration is common. Eating disorders can also lead to other mental disorders, most commonly depression. Any of these illnesses comes with its own sets of implications.
Researchers speculate the causes of eating disorders, considering several factors.
One possible cause is body image. Our society places great value in beauty and thin bodies, which for most are unattainable. Scientists believe eating disorders may run in families. For some already at risk, a simple comment or criticism from a close friend or loved one may be enough to trigger an eating disorder. Biochemistry plays a role in eating disorders.