Chapter 15 – Eating Disorders
There are three specific types of eating disorders, these include:
Anorexia Nervos a: characterized by a pursuit of thinn ess that leads people to starve
Bulimia Nervosa: characterized by a cycle of bingeing followed by extreme behaviours to
prevent weight gain, such as self-induced vomiting.
Bing-eating disorder: people with this disorder regularly binge but do not engage in
behaviours to purge w hat they eat
Amenorrhea: listed as diagnostic criteria for Anorexia Nervosa, those women and girls
who have begun menstruating, the weight loss causes them to stop having menstrual
Types of Anorexia Nervosa –
Restricting type of anorexia nervosa: people refuse to eat as a way of preventing weight
gain. Some attempt to go for days without eating anything; most eat very small amounts
of food each day.
Binge/purge type of anorexia nervosa: people periodically engage in bingeing or
purging behaviours (e.g., self-induced vomiting or the misuse of laxatives or diuretics)
Bingeing: eating a large amount of food in one sitting
Purging type of bulimia nervosa: people who use self-induced vomiting or purging
Non-purging type of bulimia nervosa: People who use excess ive exercise or fasting to
control their weight but do not engage in purging.
Enmeshed families: families in which there is extreme interdependence in family
interactions, so that the boundaries between the identities of individual members are weak
and easily crossed
Set-point: each person has a natural weight, which t he body will fight to maintain, even if
the person attempts to lose weight.
Contributors to eating disorders include biological, Sociocultural and psychological
Biological – genetic predisposition to eating disorders, predisposition to depression,
dysregulation of hypothalamus, serotonin imbalances