Previous research has revealed that a certain allele increases the risk for a variety of diseases in aging populations, specifically Alzheimer's and cardiovascular disease. And yet, despite its negative effects, this allele remains prevalent in approximately 20 percent of the human population. In a quest to determine how this negative allele is surviving natural selection, a group of researchers have discovered that the allele is associated with increased fertility in women.
from Healthy Aging News -- ScienceDaily https://ift.tt/HtN72QK
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