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人们在性生活之前,都习惯痛痛快快洗个澡,一是为消除白天的疲劳;二是为清洁皮肤,除去异味;三是清洗性器官,杜绝病菌感染。其实,这种做法也有不妥之处。如果使用热水洗澡,全身皮肤立即广泛充血,会顿时吸引人体大量的血液,很快超过每分钟450毫升的数量。而用冷水洗澡,当时全身皮肤里的血管会广泛性收缩,之后随即发生的舒张现象,又会引起皮
People in the sexual life before, are used to take a quick shower, one is to eliminate the fatigue during the day; the second is to clean the skin, remove odors; third is to clean the sexual organs, to eliminate bacteria infection. In fact, this approach is also inappropriate. If you use hot water bath, the body immediately extensive hyperemia of the skin, will suddenly attract a lot of body blood, quickly exceeding the number of 450 ml per minute. And take a bath with cold water, then the body’s blood vessels in the skin will be extensive contraction, diastole then occurs, will cause the skin