You should remember not to drink two hours before going to bed, and only drink one or two beers at most for dinner. Sleepiness after drinking is a manifestation of central nervous system injury, which destroys the balance between excitement and inhibition of the nervous system and is harmful to people. In addition, from dinner to digestion and absorption a few hours before going to bed, there is little food in the abdomen. At this time, drinking is basically on an empty stomach, and alcohol will be absorbed into the blood after a few minutes. The high alcohol content in blood strongly stimulates the inner wall of blood vessels, which will raise blood pressure. The more you drink, the higher your blood pressure will be. This will rupture the hardened blood vessels in the brain and lead to cerebral hemorrhage. At night, the metabolism of the human body is slow, and many harmful substances in the wine (such as methanol and ethanol, which will become formaldehyde and acetaldehyde after oxidation in the body, are carcinogens) are easy to accumulate in the body and poison the body. Traditional Chinese medicine believes that the physiological rhythm of the human body will not get sick unless it conforms to the changes of yin and yang day and night. It belongs to Yang in the daytime, Yin in the evening, and wine belongs to Yang, which is warm. When people are asleep, be quiet, not only outside, but also inside. Drinking alcohol before going to bed will hurt yin and help yang, and yang will be restless, which will not only affect gastrointestinal digestion, but also affect the quality of sleep, making people have a bad rest and lead to listlessness. Over time, it will do a lot of harm to the human body.

Modern medical research believes that many harmful substances in alcohol (such as methanol and ethanol will become formaldehyde and acetaldehyde after oxidation in the body, which are carcinogens) are easy to accumulate in the body and poison the body. Drinking during the day, due to the rapid metabolism of the human body, these harmful substances are easily excreted, and the damage to the heart, liver and brain is relatively small.

It has also been reported abroad that drinking alcohol before going to bed will damage the retina, prevent the retina from producing photosensitive visual pigment and reduce its ability to distinguish objects in the dark. Drinking before going to bed has hypnotic effect (if you drink too much), no problem.

But there are many influences. First, drinking alcohol is more harmful to the liver than usual. Second, the influence on the stomach has also been strengthened.

Finally, it hurts the spleen. In a word, sleeping after drinking is very harmful to metabolism. If you smoke, you will feel chest tightness when you get up the next morning!