According to the Federal Statistical Office (Destatis), around 2022 million people in Germany were living with a disability in 10, 7.8 million of whom were even considered severely disabled. A disability can be congenital or caused by an accident, but also by a chronic disease.

The degree of disability is determined by a medical expert and depends on the limitations that the disabled person has in everyday life. According to the VDK, these diseases can be considered severe disability: sleep apnea syndrome, diabetes mellitus and multiple sclerosis.