Eating disorders are abnormal patterns of eating and exercising that severely interfere with a person’s lifestyle . The most common eating disorders are anorexia , bulimia nervosa and binge disorder. They happen because of a combination of factors. If eating disorders aren't treated, they will end in serious medical problems. The first step is to talk to your usual doctor – for instance , your GP (GP). An eating disorder is marked by extremes. A person with an disorder may have began just eating smaller or larger amounts of food than usual, but at some point, the urge to eat less or more spirals out of control. Eating disorders are very complex, and despite research project to know them, the biological, behavioral and social underpinnings of those illnesses remain elusive. The two main sorts of eating disorders are anorexia and bulimia nervosa. Most of those disorders are almost like anorexia or bulimia but with slightly different characteristics. Binge disorder , which has received increasing research and media attention in recent years, is one sort of EDNOS. Eating disorders often appear while adolescence or young adulthood, but some case studies indicate that they may develop during childhood as well. Women and girls are far more likely than males to develop an disorder. They frequently co-exist with other psychiatric disorders like depression, drug abuse, or anxiety disorders. People with eating disorders can also suffer from numerous other physical health complications, like heart conditions or renal failure , which may cause death. Eating disorders are very complex illnesses. Many things contribute to their development. The media makes thinness look glamorous and desirable, but people do not develop eating disorders because they are trying to get attention or look like fashion models. Eating disorders can have very serious and harmful effects on young people and their families. Youth suffering from eating disorders are quite isolated and afraid. Families often don’t know what to do. There may be a delay between the start of an eating disorder and a decision to look for help. The person with the problem may feel more and more isolated. She may think that others cannot understand or help her.