Phlegm can be seen in the following cases: First, the taste of the meal is heavy; second, there are some indigestible things in the meal; third, the total amount eaten may be large. These three cases will exceed the digestive load of our spleen and stomach, Chinese medicine speaks phlegm is how to come, phlegm is in any diet, more than the digestive capacity of the spleen and stomach, that is, the spleen and stomach can no longer digest those parts, in Chinese medicine theory is phlegm, called endogenous phlegm and dampness, so in the diet must be measured, that is, how much can digest how much to eat, digestion will not be turned into phlegm. In fact, coughing up phlegm is called tangible phlegm, in addition to tangible phlegm, will also generate invisible, that is, invisible phlegm damp. In fact, we are talking about high blood sugar, high blood lipids, plaque in the blood vessels, including high uric acid, which is actually phlegm and dampness in Chinese medicine, but it does not turn into phlegm and cough out, but it is also caused by the spleen and stomach not digesting, so we must pay attention to this. The other is that the original lungs or airways have some chronic inflammation, such as the cold is not completely well, there is some sunken phlegm in the airways, because the meal is hot soup, hot porridge, hot rice, eating is hot steam, in the swallowing action, hot steam will be sucked into the lungs, play the role of wetting the airways, will also help to drain phlegm, so this aspect is not a bad thing, if the diet If you eat a moderate amount of food and do not eat something with a heavy taste, but still have phlegm discharge, this is mostly the case.