Because of the deficiency of qi in the upper part and the excess of qi in the lower part, that is, the stomach and intestines are full of qi but the heart and lungs are deficient, the qi of the camp and the health stays in the lower part, and it can't go up on time for a long time, so forgetfulness occurs.
有的人经常健忘，是为什么呢？
《黄帝内经》记载：上气不足，下气有余，肠胃实而心肺虚，虚则营卫留于下，久之不以时上，故善忘也。
意思就是说：因为人的上部之气不足，下部之气有余，也就是肠胃气实而心肺气虚，就使营卫之气稽留在了下部，久而不能按时上行，所以出现健忘。
