In the busy city life, we often ignore the body signals, especially those hidden health risks that are not easy to detect. You may notice the changes of skin, the fluctuation of weight and even the ups and downs of mood, but there is one thing that we often ignore-that is, the health of bones. When it comes to bone health, many people will think of the news of fracture in the elderly or the warning of osteoporosis. However, these problems are not exclusive to old age.