Reason: After drinking too much wine, the capillaries will expand, the heat dissipation on the human body surface will increase, and the heat exchange will be more frequent. If the surrounding temperature is relatively low, it will cause a rapid drop in human body temperature, and people will feel cold.
When alcohol enters the body, the absorption and metabolism of alcohol begin. Alcohol itself and its metabolites, such as acetaldehyde, have the function of dilating blood vessels, thus expanding the capillaries on human skin and accelerating blood circulation. In this way, the heat in the human body will be radiated to the body surface quickly, and the human body will feel warm.
In addition, alcohol and its metabolites will also have a certain anesthetic effect on the central nervous system, which will reduce the sensitivity of skin to external temperature. However, it is worth noting that this loss of heat inside the body is only a short-term process, that is to say, the "warmth" after drinking is a temporary phenomenon. Without much time, drinkers will feel particularly cold, which is because of the loss of heat in the body, so the more they drink, the colder they feel.
At the same time, this so-called "cold after drinking" is more likely to make people catch a cold or frostbite. In particular, it needs to be reminded that drinking alcohol to keep out the cold is even worse for the elderly. Old people are not very sensitive to the change of body temperature, such as the disorder of body temperature center regulation caused by drinking, which is more likely to damage their thermoregulation function.
Actually, drinking a small amount of wine in winter is good for your health, which can relax muscles and promote blood circulation, stimulate appetite and promote fluid production. However, it is not advisable to use alcohol to keep out the cold. In addition, we should be more careful when drinking alcohol in winter. According to epidemiological investigation, there are more than ten times more hemorrhagic diseases induced by drinking alcohol in winter than in summer.
Extended information:
Proper drinking can give full play to its medicinal value:
1. Slow drinking with warm wine: Chinese medicine believes that wine is slightly toxic in temperature, which can dredge collaterals, activate blood stasis and dispel cold, so it is necessary to drink it warm every time, in small quantities and slowly, and it is forbidden to mix wine and drink it hastily.
2. Add ginger and glutinous rice to those with deficiency cold: Although high-alcohol liquor tastes good, Chinese medicine recommends yellow wine and rice wine for health preservation, especially in winter, and add ginger and glutinous rice to cook together, so as to strengthen the spleen, eliminate dampness and warm the stomach and intestines, which is especially suitable for those with deficiency cold.
3. Only when the sheep and poultry are cooked with wine can they really warm up: those with yang deficiency and cold body can eat wine to replenish energy. It is recommended to cook wine with hot meat such as chicken, goose, duck and mutton in autumn and winter, so as to play the role of "a hundred medicines".
For example, the flame goose can remove the fishy smell and warm the blood vessels; Beer duck, relieve yin, dampness and heat; Put some wine in the stewed mutton, which is delicious and dry. Of course, adding aconite, cinnamon, Morinda officinalis, Eucommia ulmoides and other medicinal materials into wine and diet can also help yang and replenish yang. However, it's best to ask a doctor to identify the constitution before deciding on a medicated diet.
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