Weird name for an important structure deep in our brain involved in memory. If yours shrinks with age, we know that your risk of Alzheimer's disease increases.
Dr. William Jagust of the University of California studied 59 women with MRIs to check out the size of their hippocampi. 46 were not on hormones and 13 were. He also scanned the brains of 38 men.
The women on HRT had significantly larger memory centers, roughly 10% bigger than those not on HRT and also larger than those of the male participants.
He continues to monitor the group to see if these mighty hippocampi protect against memory loss over time.
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