We can be young in every respect, except in our skeleton. For a long time it was thought that osteoporosis was an unavoidable consequence of aging. But with new knowledge, it has become certain that exercise and nutrients are able to strengthen your bones and give you a youthful skeleton, no matter what your age. It is a condition in which bone tissue mass decreases, which causes the skeleton to become more susceptible to fractures. This slow progression makes the bones so weak that they can no longer support the body.
Women are more susceptible than men partly because women have less bone mass to start with.
However, osteoporosis can develop in men and younger women also. Postmenopausal women become victims since after menopause, their body's production of sex hormones, especially estrogen, declines. Estrogen seems to slow down the process of bone destruction. Bone formation goes on until the age of 25 years. In young adulthood the skeleton remains in a steady state.