房中术是指古代有关男女两性性生活及其与养生延年之关系的一种学说及方法。 道家房中术是道家的练习功夫，房中术练习简单有效，房中术真人示范教程固精视频，易学，易懂， 通过外部锻炼以及固精炼精化气，从而达到久交不泄，壮阳提肾
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