Although to a large extent genetics predict bone health, exercise and good nutrition during the first three decades of life (when peak bone mass is reached) are still excellent safeguards against osteoporosis (and countless other health problems).
Other Factors Associated with Osteoporosis
Depression. One study found an association between major depression and low bone mineral density in women. More than a third of premenopausal women who suffered from major depression had low bone density comparable to that of postmenopausal women. One explanation for this association is that depressed women have higher levels of the stress hormone cortisol, which may contribute to bone density loss.
Premature Gray Hair. One study reported that men and women whose hair turns gray in their 20s or was half gray by age 40 have an incidence of thin bones that is four times higher than those who go gray later. Smoking, which also contributes to thin bones, has also been associated with premature gray hair.
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