获益匪浅。另外,“饿”到底是胃排空了的感觉还是血糖低的感觉?
我们觉得饿了主要是胃部的感觉还是大脑对血糖浓度的评价?我觉得饿主要是胃部空空如也的感觉,这时候你赶紧喝两口水也就不觉得有那么饿了。当然几分钟之后那两口水被胃吸收和排空了,你又会觉得饿了。真正饿得头昏眼花可能才是跟血糖浓度有关。
the feeling of "胃部空空如也" is an indirect result of 血糖低
in other words, you cannot feel "血糖低",
but low blood sugar level can stimulate a long chain of mechanisms which finally result in stomach contracting and digestive juice secretion.
the feeling of "胃部空空如也" is stomach contracting & digestive juices secretion. So, a glass of water will dilute digestive juice and transiently inhibit stomach contracting which makes you feel not so hungry for a moment.
However, if the long chain of mechanisms which links "血糖低" and feeling of "胃部空空如也" is somehow blocked, one will not feel hungry even if blood sugar level is very low;
by contrast, if the long chain of mechanisms will be somehow stimulated without the signal of "血糖低", one will still feel hungry even if his blood sugar level is very high