This may also be why the young scholars get weaker and weaker. The ancient Chinese medical text Qian Jin Fang (Essential Prescriptions Worth One Thousand Gold Ingots) has one intriguing segment which reads, "Thinking of intercourse when alone is very harmful to longevity and brings on many illnesses.
這也是何以小說中的書生在靡無虛夕之後，跟著就「體弱氣虛、真元耗盡」。