After drinking alcohol, the body feels cold, usually for the following reasons: First, some people are weak, due to kidney deficiency, qi deficiency and blood deficiency, after drinking alcohol will feel abnormally cold body. Secondly, the most common reason is hypoglycemia. When the body is in a state of high energy decomposition and consumption after drinking alcohol, the body is in negative nitrogen balance, and if glucose cannot be replenished in time, the energy will have a transient hypoglycemic reaction of excessive blood glucose decomposition, and then the clinical symptoms and manifestations of chills around the body will appear. Thirdly, after drinking alcohol, the ethanol in alcohol will be rapidly absorbed into the blood to release acetaldehyde, acetaldehyde will make the body appear cold, chilling reaction, will feel cold, chills and other situations, it is the clinical manifestations of excessive drinking.