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Anorexia nervosa

Anorexia nervosa is an eating disorder, characterized by inability to maintain a normal body weight. When this disorder is diagnosed, a doctor takes into account the minimal indices of body weight that correspond to age, height and sex of a patient.

To diagnose and cure anorexia nervosa, the Body Mass Index (BMI) term is mostly used.

  • BMI 20-25 – normal body weight
  • BMI – 17.5-20 – insufficient weight
  • BMI – 15-17.5 – prevalence of catabolic processes
  • BMI 13.5-15 – severe anorexia nervosa

The BMI less than 13.5 indicate a severe anorexia nervosa. This degree of the disease is characterized by internal organs dysfunctions (heart, skeletal muscles tissues and spinal cord). The BMI under 12 poses a real threat to life.

Before the disease is diagnosed, most patients have a normal body weight, but with the emergence of eating disorders, their weight starts decreasing progressively. The most common causes of anorexia nervosa are:

  • Exhausting physical activity.
  • Fasting or unbalanced low-calorie diets.
  • The use of emetic drugs, clyster, laxative or diuretic drugs.
  • Uncontrolled use of weight loss pills.

Unfortunately, eating disorders are often observed in adolescence. This type of anorexia nervosa is characterized by stable body weight with height increase and BMI decrease, but not the weight loss.

One of the main causes of anorexia nervosa is a conscious desire of patients to have low body weight. The most common mistake is that people with low BMI consider a high-calorie food as bad for their health and avoid it.

Exhausting physical exercises against the background of insufficient consumption of macro- and microelements can improve the overall state only for a short period of time. Later, this often causes exhaustion and reduces the level of metabolism by more than 50%.