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the claim

Women's menstrual cycles synchronize when they live or work together.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 4 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that women's menstrual cycles synchronize when they live or work together?

No. A 2006 study of 186 Chinese women living in dorms found no cycle synchronization, and a reference work states no scientific evidence supports menstrual synchrony, with McClintock's original study flawed and others failing to replicate it.

Verdict: REFUTED · 0 sources for, 4 against · Last checked

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Evidence against · 4
Menstrual synchrony - Wikipedia
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Menstrual synchrony - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Menstrual_synchrony

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More against · 3
Women do not synchronize their menstrual cycles.
2006
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Z, Y. & JC, S. (2006). Women do not synchronize their menstrual cycles.. doi.org. https://doi.org/10.1007/s12110-006-1005-z

Do women who live together get synchronized menstrual cycles?
2012
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Do women who live together get synchronized menstrual cycles?. (2012). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/12403/do-women-who-live-together-get-synchronized-menstrual-cycles

Study of menstrual cycle synchrony in female medical students sharing common accommodation -
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Study of menstrual cycle synchrony in female medical students sharing common accommodation - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.4103/jfmpc.jfmpc_382_23

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