Why Do People Have Periods When Most Mammals Don't?

The video explores the rarity of menstruation among mammals, explaining the menstrual cycle and its hormonal regulation. It debunks historical myths and misconceptions, such as the idea of menotoxin, and discusses evolutionary theories on why menstruation occurs. Current hypotheses suggest menstruation is a byproduct of the evolutionary struggle between the fetus and its host, with spontaneous decidualization playing a key role. Understanding these processes could aid in treating reproductive health issues.

What misconceptions about menstruation have existed throughout history?

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Discuss the evolutionary significance of menstruation in humans.

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What is the relationship between menstruation and the health of embryos?

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How might understanding menstruation help in treating reproductive health issues?

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