《黄帝内经·素问·五常政大论》
岐伯说：地势高的地方，阴气所治，故其人长寿；地势低下的地方，阳气多泄，其人多早夭。
岐伯曰：高者其气寿，下者其气夭，地之小大异也，小者小异，大者大异。
Qi Bo said, “High ground is ruled by yin qi, thus people living there live long; low ground disperses yang qi easily, thus people living there die young.”