Eating disorders

Eating disorders are among the most serious mental health conditions. They affect not only eating behavior, but also have a profound impact on the thoughts, emotions, and actions of those affected. It is helpful to understand eating disorders as phenomena on a spectrum – ranging from disordered eating habits to clinically significant conditions such as:

Anorexia nervosa
Bulimia nervosa
Binge eating disorder (recurrent binge eating without purging)

Eating disorders can take many forms: individuals may be underweight, of normal weight, or overweight. Body weight alone does not indicate the level of psychological distress or the severity of the illness. Moreover, an eating disorder can change over time and transition from one form into another.

The consequences of an eating disorder can be severe – both physically and mentally. These may include:

Irregular heart rhythms, extremely slow pulse, cardiac arrest
Bone loss (osteoporosis)
Missed periods, infertility
Depression and anxiety disorders
Social isolation
Dropping out of school or vocational training

The development of an eating disorder is complex and is best explained using the biopsychosocial model. This model highlights the interaction of genetic, psychological, and social factors such as:

Family history of eating disorders or mental illness
Perfectionism, low self-esteem
Social ideals and pressure to conform to beauty standards
Stressful or traumatic life events

Prevalence estimates in Western countries suggest that approximately 1–2% of adolescents suffer from anorexia nervosa, and around 2–3% from bulimia nervosa. Binge eating disorder is the most common, affecting about 3–5% of the population. Anorexia nervosa has the highest mortality rate of all psychiatric disorders – about 10% of those affected die as a result of the illness.

The earlier an eating disorder is detected and treated, the better the chances of recovery. Early intervention – especially in adolescence – is therefore crucial. Nevertheless, the road to recovery can be long and challenging.