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alcohol is a depressant, which affects mood, and a drug that affects impulse control and inhibitions.
Alcohol affects you mentally by lowering inhibitions and desensitizing you to social cues. It affects you physiologically by slowing your heart rate and breathing down as it's a CNS (central nervous system) depressant.
Alcohol impairs their judgment and lowers their inhibitions. In other words, it takes away the things that usually keep them from acting goofy. Without those restraints, goofiness rules.
You should not. Drinking reduces inhibitions, the ability to make good decisions (judgment) and affects the eyesight and concentration. These are a lethal combination when operating any machinery, especially a motor vehicle.
judgment 1st
At a Blood Alcohol Concentration (BAC) of .05, your muscle function, memory and judgment decrease. Then at .1 BAC you lose control of emotions and feel physically sick.
Alcohol affects judgment by interfering with neurotransmitters in the synapses of the brain particularly in the frontal lobe of the brain which controls judgment. The messages then don't get properly sent and computed in the brain, therefore causing the person to make bad decisions they normally would not make.
Alcohol affects inhibitions and can make people more willing to express their true feelings without overthinking or filtering them. In this state, the filters and defenses that typically prevent someone from speaking openly about their emotions may be lowered, allowing their true feelings to come to the surface.
There is a very well established link between the two. Alcohol is a drug which affects people's brains and often makes people lose their normal control (inhibitions), especially social ones. So, if a person has drunk a lot alcohol, they can be led to do things that they normally would know that they shouldn't: hurt people and be violent. Consider looking up statistics online.
alcohol affects every organ in your body; that's if you have too much.
Alcohol is a depressant.
A person's judgment is the first thing affected after drinking an alcoholic beverage. - Official Florida Driver's Handbook 2010, page 18