Based on the combined works and extensive knowledge of Jan de Vries, Dr. Carl Heede, and Marie-Louise Schicht, this book provides guidelines on how to treat diseases associated with modern society. The author suggests that many of these diseases must be addressed in a new way--in treating 21st century diseases, a 21st century approach is needed. At the same time, de Vries reminds us of the great scientific pioneers of the past who understood and used the gifts of nature to alleviate human suffering. He explores the possibility of going back to the grassroots of medicine in order to regain good health. "Healing in the 21st Century "should prove an eye-opener for those working in the medical profession. The author demonstrates that a multi-disciplinary approach, combining orthodox and conventional, old and new, medicine is not only possible but necessary.