Although there are many kinds of wine, they all contain ethanol, commonly known as alcohol, but the content is different.

When we drink alcohol into our stomachs, our bodies will begin to absorb alcohol, that is, ethanol, and transport it to all parts of the body, including the brain, through blood circulation.

As the supreme commander of the body, the brain is closely protected by a layer of organization called blood-brain barrier. Unfortunately, this blood-brain barrier has no resistance to small molecules like ethanol. Under the massive invasion of ethanol, the normal operation of the nervous system began to be seriously disturbed.

At the molecular level, ethanol can destroy the cell membrane of neurons, combine with many neuron receptors indiscriminately, activate "inhibitory neurons" and inhibit "activated neurons", leading to brain dysfunction. On the whole, the brain will be excited first and then inhibited.

When the brain is excited, because the normal function has been disturbed, the monitoring effect of consciousness on behavior begins to collapse, resulting in countless incredible behaviors.

Therefore, drinking red wine will also make you drunk.

Reasons for different alcohol consumption in extended data

The metabolism of alcohol in human body is mainly completed by the liver. Scientists have found that there are two kinds of biological enzymes in the human body that are closely related to alcohol metabolism. A biological enzyme called alcohol dehydrogenase can decompose ethanol into acetaldehyde; Another biological enzyme is called acetaldehyde dehydrogenase, which decomposes acetaldehyde into water and carbon dioxide and excretes it. It is acetaldehyde dehydrogenase that determines a person's alcohol consumption.

If some people's acetaldehyde dehydrogenase function is incomplete and their ability to convert acetaldehyde is poor, acetaldehyde will accumulate in the body, which will have a great impact on the body. It can dilate the peripheral blood vessels in the body, especially in the face, thus causing the drinker to appear red in the face, neck or even whole body.

Because peripheral blood vessels dilate, blood pressure drops. In order to keep balance, adrenaline is secreted, which makes blood vessels contract, so that the heart rate is accelerated and blood pressure is raised. Therefore, people who can't drink alcohol will have blushing, heartbeat, dizziness and other symptoms because of acetaldehyde dehydrogenase dysfunction after drinking.

References:

The role of ethanol: Why do people lose their manners when they are drunk? 》

Xinhuanet "Why do some people get drunk easily after drinking, and some people don't get drunk easily? 》