Bacteria are usually associated with diseases. In truth, there is no health without them. As a vital "microbiome", bacteria play a part in metabolism, hormone cycles, immune activity, digestion and food intake. Many diseases are due to microbial disorders: intolerances, stomach acidity, irritable bowel, skin diseases, inflammations, ADHD, diabetes, overweight and many more. Bacteria are considered today as the medicine of the future. This book is the first to explain the history, background and development of bacterial and antimicrobial healing methods. The microbiome of the human body and its tasks, diseases and healing possibilities are explained. Old ways of healing with bacteria and all common microbiological therapies are presented, probiotics and dietary fibres are described. With practical An.