PHILADELPHIA (WPVI) -- A report from this week's international Alzheimer's conference says a woman's reproductive life may play a big role in her risk of dementia.
Women with 3 or more children had a lower risk, however, those with 3 or more miscarriages had a much higher risk.
Because age is also a factor, doctors used to assume more women developed Alzheimer's because they live longer.
They now suspect it may be due to hormone-related changes in the brain.
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