Using seven short questions adapted in the style of a Food Frequency Questionnaire, the project aims to assess the use of commonly applied non-pharmacological complementary medicine therapies, including acupuncture, relaxation techniques, neural therapy, osteopathy, yoga, Qigong, and Tai Chi. Furthermore, the project seeks to investigate the influence of using these therapies on the development and progression of diseases, as well as to track changes in usage behavior over time.