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中年夫妻要面对一个问题——“性爱剪刀差”。

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35岁:男人性欲降女人性欲涨

中年夫妻的“阴盛阳衰”

在医院男科诊室,医生问35岁的莫先生来看什么病,莫先生说自己没有病,是妻子非要逼着他来的,妻子说他早泄。医生问:“每次性生活能有多长时间?”莫先生说:“五六分钟吧。”医生说,男性性生活时间经常在3分钟以内,才算是早泄,莫先生确实没病。

医生细问得知,原来莫先生和妻子同岁,以前性生活时妻子总是羞羞答答的,近两年她逐渐放开,还开始对莫先生不满意。医生指出,中年夫妻要面对一个问题——“性爱剪刀差”。

什么是“性爱剪刀差”呢?一般来说,男性在18∼25岁性欲强于女性,25∼30岁达到顶峰,在性生活上多属主动型,35岁以后性欲开始下降。法国的一项研究曾对1408例20∼60岁的健康男性进行调查,发现40岁以后的男性雄激素浓度至少下降25%。雄激素浓度一下降,男性对性生活的兴趣、要求和频度均明显减退。35岁以后的男性由于工作劳累、全身血流缓慢,肌肉张力减退,阴茎不像以前那样容易勃起,即使有过性生活的要求,阴茎勃起也需要较长时间,硬度降低,持续时间缩短,射精力量减弱。相反,女性在18∼25岁处于性欲的朦胧阶段,到了35岁左右性欲逐渐增强,并超过男性,从被动转向主动。老话说“女人三十如狼,四十如虎”,道理也就在此。由此可见,35岁是个分水岭,男人性欲由高变低,而女人性欲由低变高,两性生理上呈现出像剪刀一样的变化,这就叫“性爱剪刀差”。有专家形象地说,中年夫妻变得“阴盛阳衰”,这是对“性爱剪刀差”的另一种诠释。


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