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Menstrual Syncing
Do women’s periods start to synchronise if they spend time together?
It is a commonly held belief that if women spend enough time together, their bodies start to communicate through chemical signals, known as pheromones. Eventually the women’s bodies will start to menstruate at the same time.
But where does this idea come from? And is it really true? We look at the evidence and wonder – could it be down to chance?
(Photo: Two women. Credit: Eugenio Marongiu/Shutterstock)
Last on
Mon 5 Sep 201614:50GMT
BBC World Service except News Internet
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- Fri 2 Sep 201621:50GMTBBC World Service except East and Southern Africa & News Internet
- Mon 5 Sep 201601:50GMTBBC World Service Americas and the Caribbean
- Mon 5 Sep 201602:50GMTBBC World Service Online, Europe and the Middle East & UK DAB/Freeview only
- Mon 5 Sep 201603:50GMTBBC World Service East Asia & South Asia only
- Mon 5 Sep 201604:50GMTBBC World Service Australasia
- Mon 5 Sep 201606:50GMTBBC World Service East and Southern Africa & Europe and the Middle East only
- Mon 5 Sep 201614:50GMTBBC World Service except News Internet
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