Dr. Episella noted an interesting feature: the period of breast-feeding women are changing the sound preferences. They seem to be a pleasant male voice sound high. «This could be explained by the fact that during the search for a partner or ovulation, women pay attention to the strength and virility, which is associated with a lower voice,», - says researcher. - «However, during lactation they require care and support associated with a high timbre».
These findings are confirmed by data collected Koren Episella and her colleagues last year. And anthropologists have found that men with low voices have more children than those who talked more, «pisklyavym» votes. Scientists believe that the low tone of voice of men is an evolutionary trait. It shows the high level of androgens (male sex hormones) in the body, which increases the likelihood of successful mating. In addition, there's a version that men with lower voices before reaching puberty.
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