low fertility. In contrast, women’s voices were rated as more attractive when their progesterone was low and estradiol was high, consistent with them being at high fertility (also see []). Behavioral changes In many mammalian species, females become more receptive to sexual advances by favored males or even actively solicitous when fertile [,]. For example, only when fertile do female rats traverse electrified grids to access males (e.g., []). Are women more receptive or solicitous when fertile? In two French studies, women approached by an attractive male confederate at high fertility were more likely to consent to a dance [] and to a request for their phone number []. Likewise, women interacting with charismatic male confederates flirted more when fertile []. Women might also engage in behaviors that help them distance themselves from undesired partners or individuals who might attempt to influence constrain their mating decisions at high fertility. A study of women’s cell phone records found that women decreased their calls to their fathers, but not to their mothers, when fertile []. Women might also engage in attractiveness-enhancing behaviors when fertile. In one study, women were videotaped dancing to pop music twice within their cycle. Men rated women’s dance as more attractive at high fertility than at low fertility []. In addition, several studies have shown that women wear more attractive clothing [] and red and pink, specifically, at high fertility [,]. One 35-day study also
low fertility. In contrast, women’s voices were rated as more attractive when their progesterone was low and estradiol was high, consistent with them being at high fertility (also see []). Behavioral changes In many mammalian species, females become more receptive to sexual advances by favored males or even actively solicitous when fertile [,]. For example, only when fertile do female rats traverse electrified grids to access males (e.g., []). Are women more receptive or solicitous when fertile? In two French studies, women approached by an attractive male confederate at high fertility were more likely to consent to a dance [] and to a request for their phone number []. Likewise, women interacting with charismatic male confederates flirted more when fertile []. Women might also engage in behaviors that help them distance themselves from undesired partners or individuals who might attempt to influence constrain their mating decisions at high fertility. A study of women’s cell phone records found that women decreased their calls to their fathers, but not to their mothers, when fertile []. Women might also engage in attractiveness-enhancing behaviors when fertile. In one study, women were videotaped dancing to pop music twice within their cycle. Men rated women’s dance as more attractive at high fertility than at low fertility []. In addition, several studies have shown that women wear more attractive clothing [] and red and pink, specifically, at high fertility [,]. One 35-day study also
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