Examines various aspects of health and disease and the importance of basic factors for preserving health and managing diseases. Discusses ancient ways to enhance self-healing and stimulate the immune system such as fasting, meditation, acupuncture, cupping therapy, balneotherapy and aromatherapy, and examines the role of nutrition and diet. Reviews Eastern pharmacotherapy and how certain herbs, minerals, and animal-based products aid in maintaining health and alleviating diseases, using evidence-based knowledge from ancient literature and recent articles.