Aging is inevitable, but there are a number of processes that a person can influence in order to live healthy and active for as long as possible. These include: sleep schedule, homeostasis, hormonal balance, metabolism, stress, nutrition, and physical activity. Valery Novosyolov, a geriatrician with 30 years of experience, and a neurologist, in his new book will explain which processes in the body change with age, how to take proper care of yourself to prevent problems in the future, and what to do if age-related diseases are already bothering you.