Some women more critical of their partners during ovulation: study

For women who are coupled up in secure, committed relationships, a new study looks at how they perceive their partners at varying points in their menstrual cycle.

For women who are coupled up in secure, committed relationships, a new study looks at how they perceive their partners at varying points in their menstrual cycle. Turns out, ovulation may have a surprising effect: safe, stable boyfriends or husbands may seem less appealing than before.

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Scientists from UCLA began their study by pinpointing the ovulation cycles of 41 undergraduate women involved in long-term heterosexual relationships. Women were asked survey questions about the attractiveness of their partner compared to other men, as well his stability and suitability as a long-term partner, including questions about his financial status.

At two different points in the subjects' monthly cycles -- at high fertility (just before ovulation) and at low fertility -- each woman was again asked details about her romantic relationship, such as how close she felt to her partner and how attracted to him she was.

While the researchers found no significant shift in how women perceived their level of commitment, trouble arose around ovulation for women who were mated to men they considered less sexually attractive. As the women neared ovulation, their attractiveness and closeness scores dropped one point on a seven-point scale. Women mated to men they perceived as sexy experienced the opposite effect, with their attractiveness and closeness scores rising by a point. The researchers then repeated the experiment with 67 other subjects, with similar findings.

The findings are slated to be published in the November issue of the peer-reviewed journal Hormones and Behavior.