In a study of 826 women, 28 percent began menstruating during the four days around the new moon, whereas no more than 13 percent did so during any other four day period.
In a decisive study, woman were more likely to get their period at a new moon.
mnli hypothesis: In a decisive study, woman were more likely to get their period at a new moon. premise: In a study of 826 women, 28 percent began menstruating during the four days around the new moon, whereas no more than 13 percent did so during any other four day period.