zygote
A fertilized ovum (egg).
Last Updated
October 7, 2025
October 7, 2025
Last updated: October 7, 2025.
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Your Brain is Aging: What a Family Physician Wants You to Know
Roughly 10% of U.S. adults ages 65 and older have dementia, while 22% have mild cognitive impairment, according to a Columbia University study. You might have concerns about your own cogn...