This essential volume presents 108 alphabetically arranged articles that explore how and why drugs are used by individuals and society and the problems and dangers that can result from inappropriate use and abuse of drugs. Readers will explore this book with the realization that substance abuse is a complex phenomenon, sometimes involving confusing meanings and conflicting behaviors. Drug use becomes harmful and dangerous when drugs are used for nonmedical reasons, especially when social or recreational use involves illegal drugs, or when the abuse of legal drugs becomes part of a person''s everyday life. Give your readers the crucial information they''ll need to make wise decisions regarding substances that can lead to addiction.