Sunlight. Forest bathing. Fasting. Cold-water baths. Bloodletting. Leeches. Cupping. These ways of healing have been practiced in different cultures around the world for centuries. But as a cardiologist working with the most high-tech medical tools, Dr. Andreas Michalsen was taught that these practices were medieval and outdated, even dangerous. As he saw surprising results in his patients, however, Dr. Michalsen explored more deeply those seemingly "outdated" methods of healing. The more he researched, the more he was convinced by the power of natural medicine - naturopathy - to heal the human body.