Prevention of osteoporosis is not only a matter for the middle-aged and the elderly, but should be paid attention to at all ages. Yin Xiangjun, deputy director of the elderly Department of the chronic disease center of China CDC, pointed out that osteoporosis, as a chronic disease, is the result of long-term accumulation of risk factors, and corresponding preventive measures can be taken at different ages. During childhood and adolescence, we should focus on obtaining the best or highest peak...