Concentration is the concept of indicating the amount of a chemical in a mixture, usually a solution.
Thus, in the field of transportation, alcohol is the percentage of alcohol (ethyl or ethanol) present in a person’s blood or in a person’s breath.
The video re-shared the picture of the police working and stopped a car to check the driver’s alcohol level, after the person blew into the tube the concentration, the police gave him go on, maybe he hasn’t used alcohol before. But there’s something wrong here, the police might have made some mistake blowing the alcohol away, not the driver, and this really doesn’t make any sense, because it’s the driver who needs to check the alcohol level here.

While blood is transported throughout the body, ethanol does not chemically change the structure of the blood. Therefore, when blood passes through the lungs, because of volatile alcohol, it easily travels through the respiratory membranes.
the air of the lungs enters the air. The concentration of alcohol in the alveolar air reflects the concentration of alcohol in the blood. When alcohol in the lungs comes out when exhaling, the device checks the concentration alcohol concentration with an alcohol meter can detect the alcohol concentration in the breath.
Therefore, instead of having to collect the driver’s blood to check for alcohol, traffic police can check the driver’s breathing on the spot and quickly find out if the driver is using alcohol traffic violation or not.

While the blood is transported throughout the body, ethanol will not be able to skip visiting your brain. Here, ethanol releases Dopamines in the cerebral cortex that are pleasant, flattering and it then binds to the neuronal receptors. In these receptors there is Glutamate, ethanol that inhibits the action of Glutamate; this inhibition causes the neuronal bonds to be unstable the intention is to make the brain slow to respond to stimuli so you see your body respond slowly to the surrounding action if you lack concentration.

In addition, ethanol binds to GABA (gamma aminobutyric acid) but in contrast to the inhibition of Glutamate, ethanol activates GABA receptors. And it’s GABA that makes us feel drunk again.
feeling “as light as flying”, many troubles dissipate, make you feel calmer along with the feeling of drowsiness, slight flickering, adventure.
This is the reason that in the field of traffic, people use alcohol to drive vehicles in traffic. When, in fact, there were a lot of traffic accidents involving