• Cirrhosis- a chronic disease of the liver that often from a long-standing alcohol addiction

• Inhibitory effect- a result of alcohol that causes the blocking of the center of the brain that controls a person's degree of self-control and shyness

• Alcoholism- habitual - compulsive, long term heavy drinking

• Tolerance level- a resistance in the body to something

• Withdrawal- a physical disturbance that results when an individual does not consume a substance they are addicted to

• Prescription drugs- Drugs only sold via a written order from a doctor

• Nonprescription drug- "Over-the-counter drugs"

• FDA/Food and Drug Administration- test drugs for safety

• Side effects- reactions to a drug other than its intended effect

• Caffeine- a stimulant

• Stimulants- drugs that speed up the body's nervous system

• Addiction- a physical/mental need for a drug or other substance or physical dependence on something

• Depressants- drugs that slow down the nervous system

• Narcotics- depressants that induce sleep or take away pain

• Morphine, codeine ex of narcotics

• Heroin- an illegal drug w/extreme withdrawls and very dangerous

• Hallucinogen- drugs that cause the brain to form unreal images

• PCP/angel dust- a hallucinogen

• LSD- ex of a halucerogen

• Nicotine- a colorless, oily, water-soluble, highly toxic, and addictive liquid alkaloid obtained from tobacco

• Tar- a thick, dark sticky liquid that forms when tobacco burns

• carbon monoxide- a poisonous gas produced by car engines and tobacco

• Sidestream smoke- smoke from the end of a cigarette

• Second-hand smoke- Smoke from another person's cigarette

• Mainstream smoke- Smoke inhaled and exhaled by the smoker

• Environmental smoke- smoke that stays in the air after someone smokes

• Emphysema- an irreversible disease caused by smoking

• FAS- Fetal-alcohol syndrome

Results of alcohol abuse- car crashes, wrecked relationships, and addiction

Medicine- Drugs meant to relieve pain, cure diseases or prevent illnesses

Drug abuse- when someone misuses a prescription or uses illegal drugs

Inhalants- substances with fumes that give a high-like feeling