LiveScience
By Stephanie Pappas, LiveScience Senior Writer
posted: 17 October 2010 08:43 am ET
Ask the average person how the menstrual cycle affects women’s moods, and you’re likely to get an earful about PMS, or premenstrual syndrome. While it’s true that PMS symptoms are common (although not as stereotypical as usually believed), new research is finding women’s behavior shifts at another point in the reproductive cycle: ovulation.

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