Eating disorders are just like any other psychological disorder or mental disorder. Mostly it is found that women suffer from it, because they want to be as skinny like some supermodel, or celebrity that they admire. They aspire to be like them and it all starts with avoiding food or following a particular diet that their stars follow.

Sometimes what happens is that people are obese and due to their overconsumption of food, they are teased about it. Over a period of time they start ignoring food to an extreme limit. This deprivation of food, obviously also deprives the person from the basic nutrients too. This leads to further health problems and mental problems like memory loss. You need to deal with these people with care. You need to talk to them and know their inner thoughts. This talking out is required more for people who are generally quiet. With proper care and interaction these people can be helped and you might also need medical supervision.