Zhang Wei Ting compiled in the past rumors that drinking tea will cause osteoporosis, making middle-aged women fearful, drink more tea feel joints strange, in fact, research shows that drinking tea not only does not cause osteoporosis, but has the effect of prevention! According to the Ministry of Health and Welfare information pointed out that 16% of the population over 60 years of age have osteoporosis problems, the elderly are prone to fracture, for health and quality of life is a great danger, not only easy to walk functional problems, and even cause life-threatening crises. Normally, when we talk about osteoporosis, we would think of supplementing calcium, but in fact, in addition to calcium, it is also very important to maintain the metabolic balance of the bones themselves. In order to maintain healthy bones, osteoclasts destroy old cells, and then osteoblasts repair them to make strong new bones, so as to achieve a balanced metabolism. However, from the age of twenty-something, osteoclasts will gradually increase, and the speed of repair will not be able to keep up with the speed of destruction, which will lead to osteoporosis. Japanese research has found that the theaflavins contained in black tea have the effect of reducing osteoclasts! According to the Osaka University experiments, the osteoclasts are twice the normal number of rats suffering from osteoporosis, in three weeks put theaflavin 7 times, the results found that the number of osteoclasts halved, and the degree of bone density back up to two times. According to the experiments on various black tea varieties, Assam black tea was found to be the most effective in inhibiting osteoclasts. When is the best time to drink it? The study pointed out that both osteoclasts and osteoblasts are activated during bedtime, so the best time to drink is after dinner. In addition to preventing osteoporosis, black tea also has the same antioxidant power as catechins, which can prevent atherosclerosis, fight aging, inhibit the oxidation of bad cholesterol, reduce bad cholesterol and neutral fats, inhibit the rise of blood glucose, and prevent influenza with its strong antiseptic effect, which is beneficial to the human body in many ways. However, black tea contains caffeine, should be avoided excessive intake, in turn, caused by the decline in sleep quality.