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...