Why is the face red after drinking alcohol?

Experts have explained why many people turn red after drinking some wine or a beer.

Weekends, many of you enlisted to be able to have fun together and inviting a few glasses of wine is not uncommon. However, have you ever noticed that the faces of some of your friends are flushed as soon as they only finish a beer?

Many people believe that people who drink alcohol and beer that blush will get drunk faster and it seems that Asians are more likely to blush than Europeans. Does the genome or enzyme in the human body have a bit of an impact on this problem?

Not everyone is caught in the blush syndrome when drinking alcohol.(Illustration).

Dr, biochemist Kenneth Warren of the National Institute for Alcohol Abuse and Alcoholism (NIAAA) said: " Not everyone is caught up in the syndrome of blushing when drinking alcohol ."

However, this syndrome affects 50% of Asians, most of them in East Asian countries such as Korea, Vietnam, China, Japan . and for Europeans, the incidence of this syndrome is not high.

This syndrome is caused by a deficiency of an enzyme called ALDH2 - which inhibits the rise of acetaldehyde in the blood. Accordingly, the enzyme ALDH2 will help the acetaldehyde substance to be converted into acetate (the basic component of vinegar).

If acetaldehyde builds up in the blood, your body will become hot, flushed, vomit and have a fast heartbeat in some people. In addition, acetaldehyde is also the culprit in causing headaches in the morning after every "cup".

Not only that, everyone has a level of reaction to different blood alcohol levels. High alcohol content will cause capillaries to relax all over the body.

At this time, in people with low response thresholds, the areas where capillary concentration is conspicuous such as the eyes and thin skin areas such as face, neck, back, eyes . are easily redened very clearly.

Capillary dilatation causes the red face to be a signal for the drinker to stop at the right time . Scientists also warned, blushing after drinking alcohol is a potential sign of blood pressure, liver .