The secret of longevity for centenarians expounds the importance of health preservation to longevity through a large number of data and examples, analyzes how to live healthily and live longer, puts forward many concrete and effective health preservation methods, and introduces the secret of longevity for centenarians at all times and at home and abroad 100. Longevity is the common aspiration of human beings, and everyone wants to live forever. With the progress of science and technology and the development of social economy, it is not a dream to live to the age of 100 if everyone can care and pay attention to their own health and keep in good health reasonably and scientifically.