Alcohol is a depressant, which means it slows the function of the central nervous system. Alcohol actually blocks some of the messages trying to get to the brain. This alters a person's perceptions, emotions, movement, vision, and hearing. Alcohol can help a person feel more relaxed or less anxious. More alcohol causes greater changes in the brain, resulting in intoxication. People who have overused alcohol may stagger, lose their coordination, and slur their speech. They will probably be confused and disoriented. Intoxication can make someone very friendly and talkative or very aggressive and angry. People who are intoxicated may think they're moving properly when they're not. They may act totally out of character. When large amounts of alcohol are consumed in a short period of time, alcohol poisoning can result. Violent vomiting is usually the first symptom of alcohol poisoning. Extreme sleepiness, unconsciousness, difficulty breathing, dangerously low blood sugar, seizures, and even death may result. From a very young age, kids see advertising messages showing beautiful people enjoying life and alcohol. And because many…