The aim of this lecture is to present on Alcohol; here briefly focus on Health and Technology. A drug is a substance that alters the way the human body works; Alcohol is the most commonly used drug in Britain. Alcoholic drinks vary in the percentage of alcohol that they contain. Alcohol overdose causes even more severe depressant effects (inability to feel pain, toxicity where the body vomits the poison, and finally unconsciousness or, worse, coma or death from severe toxic overdose).