Bulimia nervosa is a serious eating disorder that affects people of all ages and genders, with significant psychological and physical consequences. The main problem is that, unlike other disorders, bulimia can go undiagnosed and untreated for a long time because people maintain a body weight within a range considered “normal” and conceal their eating behaviors.
Bulimia is estimated to affect approximately 2% of the population (being twice as common in women) and, although more than half of the people recognize that they need help, less than a third have spoken to their doctor and only 2.5% receive treatment, according to a study published in the International Journal of Eating Disorders.
What is bulimia nervosa and what happens during an episode?
Bulimia nervosa is a disorder characterized by binge eating followed by inappropriate compensatory behaviors to maintain weight control. Unlike binge eating disorder, individuals with bulimia often misuse laxatives or diuretics, induce vomiting, or engage in prolonged fasting or excessive exercise, all with the goal of preventing weight gain.
Basically, in an episode of bulimia, you may experience an intense urge to eat large amounts of food in a few minutes, often secretly, and then feel deep distress about your weight or body shape, which triggers those extreme behaviors to compensate for what you’ve eaten.
In fact, one of its characteristics is precisely the feeling of shame, guilt and anxiety after eating, accompanied by a constant preoccupation with body and weight, which invades almost every aspect of daily life.
Thus, people with bulimia nervosa become trapped in a vicious cycle: they binge eat and then try to get rid of those calories. This plunges them into a state of anxiety, distress, and dissatisfaction that fuels their loss of control and leads to further binge-eating episodes.
The main psychological symptoms of bulimia
Bulimia is not limited to eating behaviors; it is a disorder that profoundly affects one’s relationship with oneself, with others, and with one’s own body. Therefore, among its most common symptoms are:
- Intense preoccupation with weight and body shape, which comes to dominate identity and mood.
- Persistent anxiety and tension that lead to impulsive eating and then generate feelings of guilt.
- Body image distortion, so that the perception of one’s own body does not correspond to reality.
- Self-evaluation influenced by body shape and weight, meaning that personal worth is fundamentally measured in terms of physical appearance.
- Emotional lability, that is, rapid changes in mood with a tendency to experience intense negative emotions.
It’s important to clarify that there are two types of bulimia nervosa. There is purging bulimia, in which the person resorts to self-induced vomiting or the regular use of laxatives, diuretics, or enemas to keep their weight under control. On the other hand, there is non-purging bulimia, in which other inappropriate compensatory behaviors appear, such as fasting or excessive exercise.
In general, these symptoms make bulimia much more than episodes of eating and purging; at its core, it expresses a way of relating to food and to one’s own body, a way that is articulated around the persistent fear of gaining weight under the watchful eye of constant self-criticism.
Beyond the psychological impact, the physical consequences of bulimia
The psychological effects of bulimia are considerable, but its impact on physical health is also serious and, in some cases, even life-threatening.
- Dental erosion and oral problems. Repeated vomiting exposes teeth to stomach acid, which wears down tooth enamel and leads to cavities, sensitivity, or gum disease. It also decreases saliva production, which promotes infections and other oral damage.
- Gastrointestinal difficulties. Chronic irritation of the esophagus, reflux, ulcers, and other digestive disorders are common in people with bulimia due to frequent vomiting and extreme compensatory behaviors.
- Electrolyte imbalances. The loss of potassium, sodium, and other electrolytes due to vomiting or the use of laxatives and diuretics can lead to muscle weakness, extreme fatigue, and even cardiac arrhythmias.
- Cardiovascular complications. In fact, dehydration and biochemical imbalances can trigger severe heart problems, such as irregular heartbeats and, in the worst cases, heart failure.
- Endocrine and metabolic damage. In people with bulimia, hormonal dysfunctions, menstrual irregularities (such as amenorrhea), or problems related to overall metabolic balance may also occur.
These problems not only deteriorate health, but also fuel a cycle of anxiety and worry that reinforces bulimic behaviors, making them harder to break over time.
What are the causes of bulimia?
Bulimia, like other psychological disorders, is multi-determined, meaning that its origin is influenced by biological, psychological, and social causes.
- Biological causes. There is scientific evidence that indicates that genetic predisposition can increase vulnerability to developing certain eating disorders, especially when there are changes in the regulation of neurotransmitters such as serotonin , which is involved in the control of appetite and mood.
- Psychological causes. Traits such as high anxiety, poor emotional regulation, and rigid or perfectionistic thought patterns are associated with a higher risk of developing bulimia. Likewise, experiencing depression can encourage binge-purge cycles as a way of coping emotionally with distress.
- Social and cultural causes. Sociocultural pressure to achieve an extremely thin ideal of beauty, along with experiences of body criticism or bullying related to weight, can contribute to the internalization of an unrealistic body ideal. Stressful factors, such as personal crises, life changes, or the introduction of strict diets, can also trigger or worsen the symptoms of bulimia nervosa.
This helps us understand why two people exposed to the same social pressures can respond in very different ways, and that individual vulnerability at a biological and emotional level is also decisive.
What is the treatment for bulimia?
Bulimia nervosa responds best when different therapeutic approaches are combined because this allows both behavioral patterns and underlying psychological processes to be addressed.
Cognitive behavioral therapy is currently the psychological treatment of choice for bulimia because it allows for the identification of binge-eating triggers and the modification of distorted thought patterns about food, body image, and weight, while also fostering healthier emotional coping skills. In fact, this treatment has proven effective in preventing relapses, reducing both the frequency of binge eating and purging.
In some cases, especially the most extreme, medication may be necessary . Fluoxetine is often used because it also improves the symptoms of anxiety and depression, helping the person regain control.
Furthermore, nutritional intervention is also essential . Consulting a specialized nutritionist allows for the restoration of regular, structured, and healthy eating patterns. It also helps reduce compensatory behaviors and contributes to developing a healthier relationship with food.
In any case, it’s important to be aware that early diagnosis of bulimia can make the difference between a solid recovery and a chronic course of suffering. However, unlike people with anorexia nervosa, identifying those who suffer from bulimia is not so simple, since they don’t exhibit extreme thinness and, because they are generally ashamed of their eating problems, they try to hide their symptoms.
Therefore, it is essential to talk about mental health and nutrition in different environments, as well as to recognize that bulimia nervosa is not a choice, but a psychological disorder that needs proper attention and treatment.
Although the recovery process is not usually linear, but rather marked by ups and downs and relapses, many people achieve a healthier relationship with food and their bodies.
References:
Donahue, J. M. et. al. (2018) Evaluating Associations Between Perfectionism, Emotion Regulation, and Eating Disorder Symptoms in a Mixed-Gender Sample. J Nerv Ment Dis; 206(11): 900-904.
Romano, S. J. et. Al. (2002) A Placebo-Controlled Study of Fluoxetine in Continued Treatment of Bulimia Nervosa After Successful Acute Fluoxetine Treatment. The American Journal of Psychiatry; 159(1): 10.1176.
Kaye, W. H. & Weltzin, T. E. (1991) Serotonin activity in anorexia and bulimia nervosa: relationship to the modulation of feeding and mood. J Clin Psychiatry; 41-48.
Fairburn, C. G. et. Al. (1983) The epidemiology of bulimia nervosa: Two community studies. International Journal of Eating Disorders; 2(4): 61-67.
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