Why do women lose bone mass at approximately twice the rate of men?
ANSWER:
Bone loss begins in the 30s, accelerates (particularly for women) in the 50s, and slows by the 70s. Once this process begins, research indicates that women lose bone mass twice as fast as men. What accounts for this? There seem to be two main factors.
The first is that women have less bone mass than men in young adulthood to begin with. This means that less loss is required for women before the loss begins to cause problems. The second factor is that with menopause comes a decrease in estrogen. This decrease in estrogen speeds up bone loss.
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