To be able to answer this question, you first need to know what alcohol is exactly and how it works. Alcohol is a clear and volatile liquid that burns or oxidizes easily. It acts as a depressant for the central nervous system, which coordinates speech, vision, coordination and concentration. The central nervous system function is affected directly proportional to the concentration of alcohol into the blood. After you ingest the alcohol, it passes from the stomach into the small intestine. From here it is rapidly absorbed into the blood, which will distribute it in the entire body. Because of the fact that it is rapidly absorbed and distributed thoroughly, any amount of alcohol, no matter how small, will get to the central nervous system and affect it. When the concentration is low, it reduces inhibitions, because it affects the part of brain responsible with behavior and emotion as well. In this stage, the sense of judgment is weakened, and that person feels braver because the socially conditioned safety stops, and he can't think clear. This is the moment when he thinks that he can do anything, say anything, and it is quite dangerous because in this moment people get into fights, or worse, think they can drive and end up in a car crash. However, as they drink more and the blood-alcohol concentration increases, the response to stimuli decreases and the speech becomes slurred; the person gets unsteady, having trouble walking. The first stage of drinking is called euphoria, and this is when the person that drinks feels uninhibited, talkative, has an increased self-confidence, but also decreased attention, judgment and control, and it is the beginning of sensory-motor impairment. Although people may think this is the best phase while drinking, it has its risk, so precaution is a must anytime you know you are drinking a little too much.