It can go through their entire life if it's not treated.
In addition, girls with eating disorders tend to have fathers and brothers who criticize their weight.
Most eating disorders are mental to begin with. They rarely stem from just the simple desire to lose weight. If they have a negative influence in their life (media, 'friends', family, bullies, etc.) telling them they are fat then that is what causes the eating disorder. People who develop eating disorders are usually just trying to control their lives. Being able to control how much they do or do not eat is a way to maintain that illusion of control which (mostly, to them at least) makes up for lack of control in other areas of their lives. Many people who suffer from eating disorders never fully recover because they have been relying on this outlet for so long that they have never learned positive ways to deal with their problems. Eating disorders are a cycle and most people tend to fall right back into the order of things because it has become a habit.
Certian cultures favor the "thin" look on women more than other cultures do. In places where being thinner is considered to be more successful, beautiful, wealthy, ect., then those cultures tend to have higher rates of eating disorders as more people strive for that look.
Because it just does
Yes, they can. People who suffer from eating disorders tend to lack vital and essentail nutrients in their diet from lack of eating properly. These missing nutrients cannot help keep nails healthy, so they can discolor, become brittle, or fall out.
Eating disorders tend to affect mostly girls (girls : boys, 9 : 1) between the ages of roughyl 12 to 25, although it can appear outside this age group (almost always older, not usually younger than 12) or to males. 95% of all eating disorder cases are in the middle- or upper-class, and 2/3 are in Western Society.
It depends on the specific eating disorder to identify specific mood or emotional symptoms. Most eating disorders, though, will involve drastic mood swings, depression, isolation, secrecy, and low-self esteem.
While an eating disorder can affect either gender equally, more women tend to suffer from anorexia and bulimia while more men tend to suffer from muscle dysmorphia, protein abuse, and anorexia athletica.
Anorexia does not always affect women. About 10% of anorexics are male. Anorexia - and most other eating disorders - are more common in women for a few reasons. Women naturally are more social, and thus focus on social pressures more then men. When social pressures demand thin-ness, women are more likely to develop eating disorders. A woman also experiences more changes in her body (pregnancy, for example) that can fuel body dislike and eating disorders. Women also tend to be more critical of each other than men are to each other. This harshness or bullying can lead to low self esteem and eating disorders, too.
I suppose it could be linked to the fact that young children look up to their parents and rely on their parents more than adolescents. When you're young and cant do everything for yourself, by yourself, you rely on your parents to do it for you, thus obeying them when the time comes. Adolescents may tend to think that they dont need their parents anymore and can do it all on their own without the help of the "annoying" adults in their lives. Bearing in mind that not ALL adolescents disobey. And good disciplining right from the start can go a long way!
Weight loss should never be the concern of a child, but the parents. Children that are pressured about weight loss tend to develop an unhealthy self image and may lead to eating disorders.
well they are both eating disorders which are illnesses. However anorexias tend to starve them selfs and bulimia will gorge on junk food then go to the toilet and throw up. They are both bad as they can kill people