<unk>  is a psychiatric diagnosis that describes an eating disorder characterized by low body weight and body image distortion with an obsessive fear of gaining weight. Individuals with<unk>  often control body weight by voluntary starvation, purging, vomiting, excessive exercise, or other weight control measures, such as diet pills or diuretic drugs. It primarily affects adolescent females all over the world, however approximately 10% of all afflicted are male.<unk>  is a complex condition, involving psychological, neurobiological, and sociological components.<unk>  is a disease condition that can put a serious strain on many of the body's organs and physiological resources.<unk>  puts a particular strain on the structure and function of the heart and cardiovascular system, with slow heart rate (bradycardia) and elongation of the QT interval seen early on. People with<unk>  typically have a disturbed electrolyte balance, particularly low levels of phosphate, which has been linked to heart failure, muscle weakness, immune dysfunction, and ultimately death. Those who develop<unk>  before adulthood may suffer stunted growth and subsequent low levels of essential hormones (including sex hormones) and chronically increased cortisol levels. Osteoporosis can also develop as a result of<unk>  in 38-50% of cases, as poor nutrition leads to the retarded growth of essential bone structure and low bone mineral density.<unk>  does not harm everyone in the same way.  For example, evidence suggests that the effects of the disease in adolescents may differ from those in adults.
Changes in brain structure and function are early signs of the condition. Enlargement of the ventricles of the brain is thought to be associated with starvation, and is partially reversed when normal weight is regained.<unk>  is also linked to reduced blood flow in the temporal lobes, although since this finding does not correlate with current weight, it is possible that it is a risk trait rather than an effect of starvation.
Anorexia nervosa
Bulimia nervosa
Orthorexia nervosa
Binge eating disorder
Night eating syndrome
Exercise bulimia
Diabulimia
Binge eating