Menstrual synchrony: Fact or artifact?

  title={Menstrual synchrony: Fact or artifact?},
  author={Anna Ziomkiewicz},
  journal={Human Nature},
Although more than thirty years of intensive investigation have passed since McClintock first published results on menstrual synchrony, there is still no conclusive evidence for the existence of this phenomenon. Indeed, a growing body of nullresult studies, critiques of menstrual synchrony studies, and the lack of convincing evolutionary explanations bring into question the existence of this phenomenon. This paper presents results of a study conducted over five consecutive months in Polish… 

Demystifying Menstrual Synchrony: Women's Subjective Beliefs About Bleeding in Tandem With Other Women

Despite the empirical uncertainty about the existence of menstrual synchrony (i.e., the phenomenon where some women's menstrual cycles synchronize when they live in close proximity with one another),

Cycling Together: Menstrual Synchrony as a Projection of Gendered Solidarity

Though researchers have hotly debated the phenomenon of menstrual synchrony—women menstruating in tandem when living in close quarters with one another—no conclusive evidence has proven or disproven

Do non-human primates synchronise their menstrual cycles? A test in mandrills

A preliminary investigation of synchronous pregnancies in women

Abstract Menstrual synchrony is when the menstrual cycles of friends or family members coincide, such that women conform to the same cycle. In this paper, we propose for the existence of synchronous

Do human menstrual-cycle pheromones exist?

Research over the past 15 years indicates, contrary to earlier results, that women do not synchronize their menstrual cycles, and it follows that that there are no pheromones that modulate the length of menstrual cycles.

Migraine and menstrual cycle synchrony in females: is there a relationship? Case report

There is no consensus with regard to menstrual cycle synchrony among females, however, it is believed that this report could be a step further for the development of further studies on such a complex subject.

Possible evolutionary origins of human female sexual fluidity

  • S. Kanazawa
  • Psychology
    Biological reviews of the Cambridge Philosophical Society
  • 2017
I propose an evolutionary theory of human female sexual fluidity and argue that women may have been evolutionarily designed to be sexually fluid in order to allow them to have sex with their cowives

Estrous asynchrony causes low birth rates in wild female chimpanzees

It is suggested that birth rates tend to decrease when females experience nonoverlapping ovulation cycles, although copulation frequency is high, and that an asynchronous female may gain a fitness benefit by increasing the probability of mating with at least one male who produces superior sperm.



Human menstrual synchrony: A critical assessment

Menstrual-cycle variability and measurement: further cause for doubt

  • J. Schank
  • Psychology
  • 2000

Environmental influences cause menstrual synchrony, not pheromones

It would appear that common environmental influences play an important role in the overall pattern of menstrual cyclicity, although synchrony occurred to a greater extent in some houses than in others.

A critical review of menstrual synchrony research

The assessment of menstrual synchrony: comment on Weller and Weller (1997)

  • M. ArdenL. Dye
  • Psychology, Biology
    Journal of comparative psychology
  • 1998
The present article uses a random selection of cycle lengths from a distribution described by R. F. Vollman (1977) to illustrate how variable cycle lengths cause a fluctuation from synchrony to a synchrony.

On the Significance of Menstrual Synchrony in Closely Associated Women

  • R. Kiltie
  • Psychology
    The American Naturalist
  • 1982
The possibility that men subconsciously are more attracted to their mates at midcycle was not consistently supported by studies reviewed by Burley (1979) on the frequency of coitus during the intermenstrum for couples in the United States.