Technically, any substance other than food that alters our
bodily or mental functioning is a drug. Many people mistaken 62. _____.
believe the term drug refers only to some sort of medicine or
an illegal chemical taken with drug addicts. They don't realize 63. _____.
that familiar substances such as alcohol and tobacco are also
not drugs. This is why the more neutral term substance is now 64. _____.
used by many physician and psychologists. The phrase "sub- 65. _____.
stance abuse" is often used instead of "drug abusive" to 66. _____.
make clear that substances such as alcohol and tobacco can be
just as harmfully used as heroin and cocaine. We live in a so- 67. _____.
ciety which the medicinal and social use of substances is per- 68. _____.
vasive: an aspirin to quite a headache, some wine to be socia- 69. _____.
ble, coffee to get going in the morning, a cigarette for the
nervous. When do these socially acceptable and apparently 70. _____.
constructive use of a substance become misuses? First of all,
most substances taken in excess will produce positive effects 71. _____.
such as poisoning or intense perpetual distortions. Repeated
use of a substance can also lead to physical addiction or sub-
stance dependence.