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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 2016
14:50GMT
BBC World Service except News Internet
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- Fri 2 Sep 2016 21:50GMTBBC World Service except East and Southern Africa & News Internet
- Mon 5 Sep 2016 01:50GMTBBC World Service Americas and the Caribbean
- Mon 5 Sep 2016 02:50GMTBBC World Service Online, Europe and the Middle East & UK DAB/Freeview only
- Mon 5 Sep 2016 03:50GMTBBC World Service East Asia & South Asia only
- Mon 5 Sep 2016 04:50GMTBBC World Service Australasia
- Mon 5 Sep 2016 06:50GMTBBC World Service East and Southern Africa & Europe and the Middle East only
- Mon 5 Sep 2016 14:50GMTBBC World Service except News Internet
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