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Groupe de Réflexion sur lObésité et le Surpoids
Association selon la loi de 1901 |
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Eating disorders | ||||||||||
| Anorexia nervosa Bulimia nervosa Binge eating disorder Other eating disorders What to do if suffering from an eating disorder? |
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It
is common that mental anorexia begins with a plump teenager who goes on a diet
and succeeds all too well. Then, without really knowing when things get out of
control, there is a shift from following a trend to a quest for purity or even
rejection of the body.
Anorexic persons struggle actively with their appetite.
Some, referred to as restrictive anorexics, are successful permanently; others,
referred to as anorexic bulimics, sometimes fall into intensive guilt provoking
bulimic crises and achieve slimness only by purging, taking laxatives and diuretics
in sometimes very large quantities or by doing profuse physical exercise.
In spite of undernourishment, anorexics can stay dynamic and active for an extraordinarily
long time, which explains why they can lose weight in significant amounts before
their relatives become worried. One of the first symptoms is the missing of menstrual
periods called Amenorrhea. Slimness becomes thinness and finally malnutrition.
Its change is variable. In 70 % to 80 % of treated cases, change in generally
favorable regarding weight and eating behavior, although psychopathologic disorders
sometimes persist as do sexual and relational difficulties, character disorders,
phobias, and eating behavior abnormalities which require psychotherapeutic treatment.
But it is also important to recall that anorexia nervosa can be a deadly disease.
Its outcome can be lethal in approximately 5 % of the cases.
DSM-IV definition, 1993 (Diagnostic and Statistical Manual)
ANOREXIA
NERVOSA:
1. Refusal to maintain body weight at or above a minimally normal
weight for age and height (e.g., weight loss leading to maintenance of body weight
less than 85% of that expected; or failure to make expected weight gain during
the growth period, leading to body weight less than 85% of that expected).
2. Intense fear of gaining weight or becoming fat, even though underweight.
3. Disturbance in the way in which one's body weight or shape is experienced,
undue influence of body weight or shape on self-evaluation, or denial of the seriousness
of the current low body weight.
4. In postmenarcheal females, Amenorrhea (the
absence of at least three consecutive menstrual cycles).
Two types of
Anorexia Nervosa exist:
Restricting Type: during an episode of Anorexia
Nervosa, the person has not regularly engaged in binge-eating nor purging behavior
(i.e., self-induced vomiting or the misuse of laxatives, diuretics, or enemas).
Binge-Eating Type or Purging Type: during an episode of Anorexia Nervosa,
the person has regularly engaged in binge-eating or purging behavior (i.e., self-induced
vomiting or the misuse of laxatives, diuretics, or enemas).
Bulimia
was officially classified by international psychiatric nomenclature in the 1980s.
From 1987, the diagnosis of Bulimia nervosa is limited to individuals who keep
a weight stabilized around normal by compensatory behaviors, such as typically
self-induced vomiting.
The typical young bulimic girl most often gives the
impression of being very confident. Behind this appearance is hidden a person
who has profound self-doubts, who does not like herself and spends her time trying
to please her acquaintances due to fear of being rejected by them.
In some
other cases, personality disorders are more profound. These types of bulimics
are acting out of impulse: kleptomania, nymphomania, drug addiction, alcoholic
abuse, attempted suicide and violence.
The bulimic crisis most often
takes place in a trance that totally escapes the persons will. Most make
themselves vomit or use laxatives and diuretics excessively, or exercise excessively
as well. Bulimia can also be compensated by a period of severe caloric restriction.
Self-induced vomiting, abuse of laxatives and diuretics often cause metabolic
disorders in the long term that engender a state of general fatigue, lowered intellectual
performance, cramps, nervous crisis, and/or irregular periods. Bulimics also suffer
from stomach, esophagus and bowel damage, dental erosion and hair loss. Sudden
weight variations engender skin problems (stretch marks). Inflamed salivary glands
in the cheeks (parotidis) sometimes cause facial swelling. Drepression is frequent
among bulimics and is most probably favored by physical weakening.
Whereas
bulimics can control their weight with difficulties by self-induced vomiting or
other methods, the binge eater does not use such compensatory behavior and is
then most of the time overweight. According to the first estimates, 20 to 50 %
of overweight individuals who seek medical care to lose weight suffer from eating
disorders of this type.
As opposed to Anorexia nervosa and Bulimia nervosa,
binge eating disorder is of identical frequency between both genders (the proportion
of anorexic men is one man for every nine women, and one bulimic man for for every
nine women).
Obese binge eaters are more preoccupied by food and by their
weight than obese people who are not binge eaters and who are always restraining
themselves without succeeding and who are more unsatisfied with their appearance.
They are also more psychically troubled : more depression, panic attacks and phobia
would be observed. They also suffer from more personality disorders.
One cannot
say today if their overweight is caused by eating disorders or on the other hand
if binge eating disorder results from their efforts made with restrictive behavior
in an attempt to lose weight.
DSM-IV definition , 1996 (Diagnostic and Statistical Manual)
From the DSM-IV
1996; Binge eating disorder, Spitzer et al., 1993)
A. Recurrent episodes
of binge eating. An episode is characterized by:
1. Eating a larger amount
of food than normal during a short period of time (within any two hour period)
2. Lack of control over eating during the binge episode (i.e. the feeling
that one cannot stop eating).
B. Binge eating episodes are associated with
three or more of the following:
1. Eating until feeling uncomfortably full
2. Eating large amounts of food when not physically hungry
3. Eating
much more rapidly than normal
4. Eating alone because you are embarrassed
by how much you're eating
5. Feeling disgusted, depressed, or guilty after
overeating
C. Marked distress regarding binge eating is present
D. Binge
eating occurs, on average, at least 2 days a week for six months
E. The binge
eating is not associated with the regular use of inappropriate compensatory behavior
(i.e. purging, excessive exercise, etc.) and does not occur exclusively during
the course of bulimia nervosa or anorexia nervosa.
Night eating syndrome: Albert
Stunkard, an American psychiatrist, described in 1955 a behavior consisting of
an imperious need to eat during the night that he named "Night eating syndrome".
These individuals regularly wake up during the middle of the night and cannot
sleep before having eaten a large meal, often gulped down in half sleep. The next
morning, they only remember confusedly what they have eaten during the night episode.
It is common that they also suffer from sleep disorders: somnambulism or sleep
apnea.
This behavior can be understood as a loss of control, favored by the
night relaxation. They have controlled their eating behavior during the whole
day; this control is defeated during the night.
Some various neuroendocrine
disorders were noticed being associated with night eating syndrome and are leads
for research: smaller rise of night leptin and melatonin rate, elevated plasma
cortisol concentration.
Carbohydrate craving: Described by R. and J. Wurtman in 1981. They are imperious needs exclusively for carbohydrates (snack food and sweet food). According to the authors, it would resemble a drug addiction and would be explained by an addiction of the serotonin-releasing brain neurons which would be stimulated by eating sucrose. But some further studies have shown that bulimics and other binge eaters are seldom eager for sugar exclusively. Let's recall that cakes, biscuits and chocolate are richer in fat than in sugar.
Sugar cravings have also been cited in regard to seasonal depression. It consists
of depressive states starting regularly in the fall and ending in the spring,
being characterized by a slowing down of mental processes, fatigue, longer sleep
time, overeating of sugar and weight gain.
Chocolate obsession: Chocoholics can be athletic, active or hyperactive, sociable
people, and would have tendency to internalize conflicts. They consume chocolate
in stress or internal conflicts situations. Various biochemical models have been
evaluated to explain this appetence: the effect of sugar on the brain, serotonin
level, phenylethylamin, increasing serotonin production, beneficent effects of
magnesium, all present in chocolate. These various theories could not be verified,
but we can stick to the idea that the intense sensorial pleasure given by chocolate
leads to eating it in large quantities.
You should consult a psychiatrist or a psychologist.
Learn more on this subject:
To learn more about cognitive behavioral therapies
To learn more on Freudian psychoanalytic orientation
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Page créée le 18 septembre 2005
Dernière Mise à Jour le 18 septembre 2005.