This week, we're talking about what may be the most stigmatized facet of human reproduction. We're joined by Dr. Kate Clancy, anthropology professor and science blogger, to learn about the physiology and function of menstruation, and the history of how it's been considered in medicine and myth. And on the podcast, biologist P.Z. Myers of Pharyngula looks at menstruation from an evolutionary perspective.
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Menstruation is a peculiar phenomenon that women go through on a roughly monthly cycle, and it's not immediately obvious from an evolutionary standpoint why they do it. It's wasteful — they are throwing away a substantial amount of blood and tissue.
It's fascinating, and a little scary, how quickly medicine can transform our notions of what "normal" is. The WSJ reports that drug makers are starting to market birth control pills as a way to help women eliminate their periods.
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