The classic research of Martha McClintock documented the existence of a phenomenon known as _____: the convergence,over several months,of the dates of onset of menstrual periods among women who are in close contact with each other.

Question

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The phenomenon described in the question is known as menstrual synchrony. Martha McClintock's research documented this convergence of menstrual periods among women who are in close contact with each other over several months. Hypermenorrhoea refers to abnormally heavy menstrual bleeding, amenorrhea refers to the absence of menstrual periods, and premenstrual syndrome (PMS) is a set of symptoms that occur in the days leading up to menstruation. These options are not relevant to the phenomenon described in the question.

The Classic Research of Martha McClintock Documented the Existence of a Phenomenon