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. In modern society, bone diseases are quietly threatening more young people, especially in the case of long-term sedentary, lack of exercise and unreasonable diet structure, bone health is facing unprecedented challenges. Osteoporosis, professionally defined, is a kind of systemic bone disease characterized by decreased bone mass and damaged microstructure of bone tissue, which leads to increased bone brittleness and prone to fracture. Simply put, it is like an "invisible thief", stealing calcium and other minerals from our bones quietly, making them brittle and porous, like wood eroded by termites. This term sounds a bit professional, but it is not far away from us.