Health knowledges content
Osteoporosis is one of the most common preventive skeletal disorder in the world. In USA about half of the population are suffering from bone weakness. One third of women and one fifth of men who are over fifty years old have bone fracture due to Osteoporosis. Osteoporosis is usually considered as an elderly’s health disorder. However, the situation of bone mass in younger people is the main reason of Osteoporosis. The main container of bone is calcium. Each person needs 1000-1200 grams calcium per day, which depends on the age and other conditions.