an invention I dislike

The invention of alcohol is to damage on people's health, so I can not stand it. On weekend nights, we always saw many college students who were drunken  in the street have broken bottles. This events was the kind of wicked behaviour that gives you the impression of being disgusting. In addition, if you excessive drinking alcohol  injure your body, even cause of gastric cancer. Another, those people who were drunken would it difficult to control own the temper and they did not know what happened or how many bottoms did they drunk, therefor invention of alcohol was a negative impact on everyone.