Li Feng-mao points out that originally fangzhongshu was a way of improving the health, "to be practiced by men and women alike." And so as well as using yin to boost yang, there were also examples of using yang to boost yin.
李豐楙指出，房中術原是一種講求「男女雙修」的養生方，因此，不光是採陰補陽，也有採陽補陰的例子。