Technically, any substance other than food that alters our bodily ormental 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 misusesFirst of all, most substances taken in excess will produce positive effects such 71. ______as poisoning or intense perpetual distortions. Repeated use of a substancecan also lead to physical addiction or substance dependence.