Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistaken believe the term drug 62. ______ refers only to some sort of medicine or an illegal chemical taken with drug 63. ______ addicts. They don’t realize 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 "substance abuse" is 65. ______ often used instead of "drug abusive" to make clear that substances such as 66. ______ alcohol and tobacco can be just as harmfully used as heroin and cocaine. We 67. ______ live in a society which the medicinal and social use of substances is pervasive 68. ______ : an aspirin to quite a headache, some wine to be sociable, coffee to get 69. ______ going in the morning, a cigarette for the nervous. When do these socially 70. ______ acceptable and apparently constructive use of a substance become misuses First of all, most substances taken in excess will produce positive effects such 71. ______ as poisoning or intense perpetual distortions. Repeated use of a substance can also lead to physical addiction or substance dependence.