Older women who drink a moderate amount of alcohol may have stronger bones than they're friends who don't drink. That’s the finding of a recent Oregon State University study on post-menopausal women. Professor Russell Turner says it's hard to specify how much is a moderate amount but something along the lines of up to 2 drinks a day.  Turner says women have accelerated bone loss after menopause, but alcohol, like estrogen, may help improve and balance bone turnover.  Turner says more research must be done to know the other ways alcohol can affect the body because it is a powerful substance.