等不上wwWjttop啦为什么应该,是js跳转到上一个页面jttopcOm别的地方啦

交而不泄有害&&正文-景天阁健康资讯[景天阁两性天地]-www.jttop.com
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交而不泄有害&&正文-景天阁健康资讯[景天阁两性天地]-www.jttop.com
交而不泄有害
在古人眼里,"精"是人体的一种重要物质,认为它是"血液所化生"的,"精少则病"、"精尽则死",因此把它看得十分宝贵。然而,男女交合是夫妇之间的正常需要,难以回避。面对矛盾,于是想出了"交而不泄"的办法。
具体做法是:在性生活达到高潮、行将射精之际,强忍不射,或捏住阴茎根部,迫使精液逆流回复到体内。
其实,精液中的重要成分就是精子。精子是生儿育女的"材料"。这些"材料"在体内会不断被制造出来,即使不主动"泄"出,也有可能在适当时候"满而自溢"??遗精。可见,把精液看得犹如生命般宝贵,是没有必要的。
当然,古人的科学知识有限,我们不必苛求他们。可今日仍有不少人笃信古训,那就遗憾了。问题是,"交而不泄"的做法有害无益。
首先,这样做使夫妇双方都不能得到充分的快感,影响了性生活的质量,尤其是男方,要时刻提防"不慎而射"的情景出现,要注意采取"急刹车"措施,心理自然紧张,性的欢悦感就会因此而大打折扣。如此,加重了神经系统的负担,使人精神压抑。久则可以导致阳痿。
其次,"交而不泄"是强迫相当多的精液返回"始发"部位,经常这样就有可能损害有关生精器官,甚至引发射精障碍。
第三,正常性交时,射精后的阴茎很快疲软,性器官的充血状况约10-20分钟就可恢复常态。如果交不泄,性动作是终止了,可性中枢活动和性器官仍无法适应突然的中断行为,性器官就会有更长时间处于充血状态,从而有可能引起尿道不适和诱发前腺及精囊疾病。从上可知,"交而不泄"是种违反自然、有害健康的行为,应予纠正。既然交合了,那就放松心理、一泄为快吧。
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介绍性爱技巧、性文化、性学书刊、两性文学、性健康资讯方面的服务平台。
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To edit your site's public information you need to Log in and verify ownership of your site.小儿睡前为什么要刷牙,怎样教孩子刷牙?
一、小儿睡前刷牙的原因:
儿童从3岁开始就要养成早晚刷牙的良好习惯,而晚上刷牙比早上刷牙更重要,因为入睡后唾液分泌量减少。唾液中和口腔中的酸性物质,并有冲洗口腔的作用。唾液减少正好给口腔中的细菌繁殖创造了条件。睡前刷牙,可清除牙齿菌斑。刷牙过程中,可通过牙刷按摩牙龈,促进牙龈血液循环,增加牙龈的抵抗力,预防牙槽发生疾患。另外,牙齿是否整齐洁净,不仅对儿童的外表很重要,而且对于消化食物,语言的清晰程度等许多方面都有作用。因此要教育儿童从小养成刷牙的良好习惯。
二:小儿刷牙的正确方法是,使用两排毛的保健牙刷,顺着牙缝刷,上牙从上往下刷,下牙从下往上刷,把牙缝中的所有食物碎渣全部清除掉。刷后用清水漱口。要注意:千万要纠正孩子左右横着刷牙的习惯。因为横刷不但刷不干净牙齿,还特别容易磨损牙齿和牙床,破坏牙齿表面的保持层,即釉,对日后孩子能否长一副健康而美观的牙齿有着极大的影响。
三:如何培养孩子养成良好的刷牙习惯:父母自己应养成良好的护牙习惯,用言传身教去带动孩子:比如早晚刷牙,饭后漱口,每晚睡前5分钟,与孩子一起刷牙,然后不再吃零食等等。
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