several hormones affect sexual arousal, including testosterone, cortisol, , estradiol. however, specific roles of these hormones not clear. testosterone commonly studied hormone involved sexuality. plays key role in sexual arousal in males, strong effects on central arousal mechanisms. connection between testosterone , sexual arousal more complex in females. research has found testosterone levels increase result of sexual cognitions in females not use hormonal contraception. also, women participate in polyandrous relationships have higher levels of testosterone. however, unclear whether higher levels of testosterone cause increased arousal , in turn multiple partners or whether sexual activity multiple partners cause increase in testosterone. inconsistent study results point idea while testosterone may play role in sexuality of women, effects can obscured co-existence of psychological or affective factors in others.
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