I was originally going to ask about the evolutionary advantage for menstrual synchrony, but I was operating under two assumptions: a) it does actually happen and b) the effect is caused by pheremones.
Based on some poking around on the internet, it is appearing that this idea (published by Martha McClintock in the 70's), is under question--people are criticizing her studies and some say that this effect does not actually occur.
So my new question is: Is there any sort of scientific consensus? If not, what do you all think? Thoughts? Speculation?
If it is plausible, why might it have evolved? What advantage would it confer?
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