Women pitch becomes higher implied to ovulation

U.S. researchers found that women close to ovulation, the words pitch becomes higher.

 University of California, Los Angeles, researchers Greg Bryant and Marty Hamilton recorded the Abkhaz 69 women in the voice of the menstrual cycle, including ovulation and rhythm.

 They found that more women near ovulation, the higher the pitch becomes.

 Especially in the two days before ovulation, the highest pitch. In contrast, women during menstruation deeper voice hoarse.

 Bryant and the Abkhaz Hamilton said, the tone can change the decoder can recognize, but not very clear in terms of the human ear. However, the men's ears may hear it.
They believe that women have this change is that men prefer a "feminine" women. Than in a low voice, high pitch more "feminine." Thus, women in the ovulation will instinctively make pitch adjustments.

 The findings, published in the British 8 "Biology Letters" journals.