Leonid Vitalievich Rudnitsky – Doctor of Medical Sciences, professor, author of many medical monographs. Humanity is surrounded by an amazing microcosm, the inhabitants of which are invisible and yet omnipresent. Representatives of this world are special creatures - mushrooms. They can be both a medicine and a pathogen. They are able to fill space, survive in space, “winter” for a million years in the Arctic, and change the environment to suit their needs. Mold can be both a friend and an enemy for humans. Recognized scientists conduct scientific research on mold, and articles on mold are published in serious scientific journals. The use of mold in the treatment of various diseases has long been widely recognized. Dr. Rudnitsky talks about the positive and negative qualities of mold in his book. Scientific research, sensational photographs and specific treatment methods from a professional doctor! This book is not a textbook on medicine. All recommendations must be agreed with your doctor.