Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly believe the term drug refers only to some sort of medicine or illegal chemical taken by drug addicts. They don’t realize that familiar substance such as alcohol and tobacco are also drugs. This is why the more neutral term substance is now used by many physicians and psychologists. The phrase “substance abuse” is often used instead of “drug abuse” to make clear that substance such as alcohol and tobacco can be just as harmfully misused as herion and cocaine. is greate
2015