Chronic diseases are incurable without surgery, while acute diseases can be cured. Medications are an emergency treatment and provide immediate relief, but they usually do not lead to long-term healing for chronic conditions. We need both conventional medicine and alternative healing methods, although endogenous, congenital forms can often only be alleviated. The new approach leads from the "gut brain" to the head brain. The patient sees light at the end of the tunnel again. This book aims to demonstrate that there are other ways to successfully treat depression. New: Food intolerances can also lead to depression. This book seeks to revolutionize the field and awaken both patients and therapists, freeing them from their lethargy.