22.02.2010 à 05:48
Melissa The Great Voucher
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MyXXXPass.com is not responsible for the content of external internet websites to which any member linking directly. We do not exercise any editorial control over any website to which any member links and do not necessarily endorse the views expressed within them.Why do men who sleep with female partners tend to continue having sexual relationships with their wives? To find the answer, scientists in the US used brain imaging to investigate whether the sleep-related hormonal changes produced by female partners and bed partners explained why women sometimes lose interest in sex.
A previous study suggested that women who sleep with men could lose interest in sex due to a hormonal effect called the luteinizing hormone surge (LHS) – which usually occurs around the time of ovulation. This is due to the fact that the levels of progesterone, a hormone that promotes menstruation and reduces interest in sex, increase before ovulation. However, the researchers in the new study found no correlation between a woman’s loss of interest in sex and a surge in the hormone luteinizing hormone (LH), suggesting that the woman’s partner’s hormonal changes were not the cause of a woman’s loss of interest in sex.
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The researchers used a test to measure levels of the stress hormone cortisol – which is associated with stress – and testosterone, which is associated with interest in sex. They also measured the effect of sleeping with the partner on a woman’s cortisol levels and testosterone levels. They found that women with a “good” cortisol response (as opposed to a “poor” cortisol response) had an increased interest in sex after sleeping with their partners. This suggests that the interest in sex was increased by the presence of the partner.
However, this increased interest in sex did not occur if the partner was a male. In this situation, women with a ac619d1d87
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