Could there be some biological truth to the expression "being in a bad mood"? The human menstrual cycle and that of the Moon temporarily synchronize just before the full Moon or the new Moon, concludes a study of several recent and last century menstrual date records. We still cannot prove that there is a causal link between lunar and menstrual cycles", recalls to Science and Future Charlotte Helfrich-Förster, first author of this work. However, our discovery is difficult to attribute to mere coincidence.. » This correlation between uterine and lunar cycles, however, seems to have diminished since 2010, an observation that researchers attribute to the increase in light pollution and exposure to screens.
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