"Alcohol and nicotine are gateway drugs," says Yang Shu-lung. A good deal of research suggests that alcoholism and drug abuse stem from the same sociological and psychological determinants. While smokers and drinkers don't necessarily go on to use other drugs, that they often lead the way should not be treated lightly.
「煙、酒是入門藥，」楊士隆指出，許多研究都證實，酗酒與嗑藥有相似的社會及心理背景因素，抽煙與喝酒者不必然成為藥物濫用者，但卻經常是濫用藥物的前奏警訊，不可輕忽。