Causes Of Anorexia Nervosa
The specific reasons that cause anorexia nervosa are still unclear. But it is believed to be caused by multifactorial biological, environmental, and psychological factors. Some of the causing factors that increase a person’s risk of developing anorexia nervosa are as follows:
1. Psychological factors
Anorexia nervosa, an overwhelming phobia of being a normal weight, is often believed to be associated with personality and behavioral traits. In most cases, anorexic people tend to seek perfection in their looks and body image. This can cause them to restrict their diet to the point of starvation to achieve unrealistic goals.
Some other psychological factors that can contribute to the development of anorexia are as follows:
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Excessive fear and uncertainty
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Medical history of depression and anxiety
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Painful or traumatic childhood experience
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Reduced ability to regulate and adapt behavior as per different situations
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The feeling of inadequacy and loneliness
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Stressful life events such as accidents, loss of a loved one
2. Environmental factors
The current culture emphasizes being unrealistically thin as a beauty standard. This external pressure and competitiveness on achieving unhealthy body goals can increase the obsession to restricting vital food intake.
3. Social media effects
Social media pressure and high social risk environments such as sports, modeling, and acting can contribute to the development of anorexia nervosa. Persistent exposure to media that present body ideals may constitute a risk factor for body dissatisfaction and anorexia nervosa. The cultural ideal for body shape for men versus women continues to favor slender women and athletic, V-shaped muscular men. A 2002 review found that, of the magazines most popular among people aged 18 to 24 years, those read by men, unlike those read by women, were more likely to feature ads and articles on shape than on diet. Body dissatisfaction and internalization of body ideals are risk factors for anorexia nervosa that threaten the health of both male and female populations.
Websites that stress the importance of attainment of body ideals extol and promote anorexia nervosa through the use of religious metaphors, lifestyle descriptions, "thinspiration" or "fitspiration" (inspirational photo galleries and quotes that aim to serve as motivators for attainment of body ideals). Pro-anorexia websites reinforce internalization of body ideals and the importance of their attainment.
The media portray a false view of what people truly look like. In magazines and movies and even on billboards most of the actors/models are digitally altered in multiple ways. People then strive to look like these "perfect" role models when in reality they are not near perfection themselves
4. Biological factors
The correlation between biological factors and anorexia is not clearly understood. However, a family history of anorexia, drug abuse, and co-existing health illness increases the risk of developing anoxia. Abnormalities in the structure or function of the hypothalamus, a part of the brain, can alter eating behaviors.
5. Genetic factors
Genetic or inherited predisposition, although the mechanism to extract responsible genes associated with anorexia is not well understood, research is being conducted to increase the understanding of the role of genes in anorexia. Anorexia nervosa is highly heritable. Twin studies have shown a heritability rate of between 28 and 58%. First-degree relatives of those with anorexia have roughly 12 times the risk of developing anorexia.
A 2019 study found a genetic relationship with mental disorders, such as schizophrenia, obsessive–compulsive disorder, anxiety disorder and depression; and metabolic functioning with a negative correlation with fat mass, type 2 diabetes and leptin.
One gene that has been linked to anorexia might be of particular interest. This gene codes for a protein called the estrogen related receptor alpha (ERRalpha). In some tissues, this gene alters the ability of estrogen and estrogen receptors to interact with DNA and change the function of cells.Since estrogen has potent effects upon appetite and feeding, any genetic abnormality in the estrogen signaling pathway could contribute to the symptoms of anorexia and explain why anorexia typically appears in young women just after the onset of puberty