Fra frelse til helse: Sundhedsapostlen J.P. Müllers religiøst inspirerede sundhedsdyrkelse

The best known Danish amateur athlete in the 1890s and with his fitness program ‘My System’ from 1904 world-famous Danish hygienist, J.P. Muller, is the son of a priest and theologically educated. In early modernity, it is difficult to simply relinquish one's religious feelings and surrender to the modern worldview. The term ‘double Christianity’ covers a tendency for Christian-inspired heritage to diffuse outside the church and continue in modern forms. J.P. Muller's gymnastics and hygiene offered the people around 1900 to continue to practice asceticism and purification, but now no longer with a view to salvation in the hereafter, but to a disease-free and vital life in the worldly domain with the prospect of being at least 150 years old. Health becomes the road to salvation.