After the age of 40 years i.e.around menopause there is a rapid bone loss (about 20%) over the next 5 – 7 years. This condition is called osteoporosis. It is a disease which weakens bones and makes them brittle.There is a direct relationship of decreasing estrogen levels and development of osteoporosis. There is a high incidence of osteoporosis in India with nearly 30 million women suffering from it. After 40 years bone resorption (breakdown) overtakes the building of new bones. As a result, the bone density decreases and females become more prone to fractures. Once you have a broken bone due to osteoporosis you are at high risk of another one. But there are steps which can be taken to prevent osteoporosis. One can start taking these preventive measures in the third decade of life rather than waiting for osteoporosis to develop later on.