Less than two weeks before Election Day, new research suggests hormones may influence how women vote.
The study out of the University of Texas, San Antonio found during the fertile time of the month, when levels of the hormone estrogen are high, single women appeared more likely to vote for President Obama.
But committed women appeared more likely to vote for Mitt Romney.
Researchers explained the different results by saying married and single women adopt different viewpoints on women's issues during ovulation, when their sexual urges are heightened.
But at least one political scientist says she doubts hormones have any more effect on women than testosterone does on Romney and Obama's debate performance.
The study will be published in the peer-reviewed journal Psychological Science.