“大姨妈”会出现人传人现象？

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视频节点：00:20 什么是月经？01:01 什么是经期同步现象？01:58 经期同步的真相是什么？主要参考资料：[1]MCCLINTOCK, M. Menstrual Synchrony and Suppression. Nature 229, 244–245 (1971). [2]Clarke, P. M. R., Henzi, S. P., & Barrett, L. (2012). Estrous synchrony in a nonseasonal breeder: adaptive strategy or population process? Behavioral Ecology, 23(3), 573–581. [3]Yang Z, Schank JC. Women do not synchronize their menstrual cycles. Hum Nat. 2006 Dec