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Substances
Substances Vocab
Term | Definition |
---|---|
drug | a chemical substance that is taken to cause changes in a person's body or behavior |
medicine | legal drugs that help the body fight injury, illness, or disease |
addiction | the drinker no longer has control over his or her drinking |
physical dependence | an alcoholic's body requires alcohol to function |
psychological dependence | alcoholics consider drinking a regular, essential part of coping with daily life |
withdrawal | a group of symptoms that occur when a dependent person stops taking a drug |
tolerance | with repeated use of alcohol, it's effects in the brain become reduced |
synergistic | drugs interact to produce effects greater than those that each drug would produce alone |
antagonistic | each drug's effect is cancelled out or reduced by the other |
drug use | using a chemical substance that alters your body |
drug misuse | improper use of medicines either prescription or over the counter drugs |
drug abuse | when a drug is intentionally used improperly or unsafely |
prescription drug | a drug that can be obtained only with a written order from a doctor and can be purchased only at a pharmacy |
over-the-counter drug | a medicine that is sold legally in pharmacies and other stores without a doctor's prescription |
stimulants | drugs that increase the activity of the nervous system |
depressants | a drug that slows brain and body reactions |
hallucinogens | a drug that distorts perception, thought, and mood |
club drugs | got their name from first gaining popularity at dance clubs and raves; strength and quality are highly unpredictable and their effects are different from person to person and very dangerous |
inhalants | breathable chemical vapor that produces mind-altering effects |
anabolic steroids | artificial forms of the male hormone testosterone |
marijuana | the leaves, stems, and flowering tops of the hemp plant Cannabis sativa |
gateway drug | marijuana is often the gateway to using harder drugs, such as cocaine |
zero-tolerance policy | teens and others under the age of 21, using alcohol is illegal; if this is broken, there will be consequences |
reverse tolerance | a condition in which less and less alcohol causes intoxication |
intoxication | the state in which a person's mental and physical abilities are impaired by alcohol or another substance |
blood alcohol concentration | the amount of alcohol in a person's blood, expressed as a percentage |
fetal alcohol syndrome | a group of birth defects caused by the effects of alcohol on an unborn child |
Food and Drug Administration | inspects, tests, and assesses the safety of food, drugs, and a variety of consumer goods |
tar | the dark, sticky substance that forms when tobacco burns |
nicotine | a very addictive chemical in tobacco products |
carbon monoxide | when substances are burned, an odorless, poisonous gas is produced |
secondhand smoke | the combination of mainstream and sidestream smoke |
mainstream smoke | exhaled from a smoker's lungs |
sidestream smoke | smoke that goes into the air directly from the cigarette |
emphysema | a disorder in which the alveoli in the lungs can no longer function properly |
cirrhois | fat-filled liver cells die, leaving behind useless scar tissue; may lead to liver failure and death |
bronchitis | an infection that causes the mucous membranes lining the bronchi to become inflamed |
dependence | the brain develops a chemical need for alcohol and cannot function normally without it |
blood alcohol level | a synonym for blood alcohol concentration |
analgesic | any member of the group of drugs used to achieve relief from pain |