From the series: Eternal youth. Beauty and health secrets. It is not difficult to determine the biological age using modern methods and tests for measuring the rate of aging. And wearable devices and home medical laboratory technologies will help you learn about the signs of accelerated aging, which will make it possible to identify and eliminate the problem in time. The information presented in the book about the causes, early diagnosis and prevention of adverse age changes will help you become healthy and active centenarians.