PSYB32H3 Study Guide - Final Guide: Delirium Tremens, Passive Smoking, Nicotinic Acetylcholine Receptor
Document Summary
Using substances to alter mood and consciousness is a human characteristic, and so too is the tendency to abuse them. Dsm-iv-tr distinguishes between substance dependence and substance abuse. Dependence refers to a compulsive pattern of substance use and consequent serious psychological and physical impairments, often including tolerance and withdrawal. With the less serious disorder, substance abuse, drug use leads to failure to meet obligations and to interpersonal and legal problems. Alcohol has a variety of short-term and long-term effects on human beings, ranging from poor judgment and impaired motor coordination to chronic health problems. People can become dependent upon nicotine, most often via smoking cigarettes. Despite somberly phrased warnings from public-health officials, it continues to be used. Medical problems associated with long-term cigarette smoking include many cancers, emphysema, and cardiovascular disease. Moreover, the health hazards of smoking are not restricted to those who smoke, as secondhand (environmental) smoke can also cause lung damage and other problems.
