Is 'period syncing' real? Two reproductive health experts explain the myth
Have you ever heard two or more women say they're on the same cycle?
Mar 15, 2026
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Genetic Phenomena: News and Research on Selection, Genetic
MeSH tree: G05.783
Like likes like: Partner preferences may be explained by genetics
It is no secret that people are often drawn to romantic partners who seem similar to themselves. This tendency, called assortative mating, has been established in humans as well as other species. Fish, for example, demonstrate ...
Aug 25, 2025
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Twin mothers aren't more fertile—just luckier
Twin births aren't exactly common. In humans, they occur in one to three percent of all births.
Aug 2, 2022
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