[From diabetes to sleep apnea: what obesity complications should we look for?].

The prevalence of obesity has increased worldwide. For Germany, according to the "Study on Adult Health in Germany" (DEGS1) of the Robert Koch Institute from the years 2008-2011, the prevalence of a BMI ≥25 kg/m² was 67,1% for men and 53,0% for women, whereby the proportion of obesity, i.e. a BMI ≥30 kg/m² is 23, 3% for men and 23,9% for women. Compared to 1998, the prevalence of obesity in the same group was 18, 8% for men and 21,7% for women. Because of the increasing prevalence of overweight and obesity, the number of patients with obesity-associated comorbidities is correspondingly increasing. There is a close association between obesity and an increased risk of metabolic diseases, cardiovascular diseases, but also musculoskeletal diseases, some types of cancer and mental comorbidities. In addition, obesity might also lead to restrictions in activities of daily living, reduced quality of life, unemployment and early retirement. A knowledge of obesity-associated sequelae is therefore essential in order to specifically look for them, treat them and thereby improve patient care and ultimately morbidity and mortality of patients with obesity.