What factors do you think are responsible for teens using cigarettes and marijuana?
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Transcript of What factors do you think are responsible for teens using cigarettes and marijuana?
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Section 17.3 Commonly Abused Drugs
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What factors do you think are responsible for teens using cigarettes and marijuana?
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Section 17.3 Commonly Abused Drugs
4 Drug Classifications1. Depressants
2. Stimulants
3. Hallucinogens
4. Anabolic Steroids
Exception of anabolic steroid, drugs in the classes are used to alter mood, thought, and feeling.
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Section 17.3 Commonly Abused Drugs
Drug DependencyPhysical dependence:
• Using the drug repeatedly makes the body need the drug to continue working
• Will result in withdrawal when stop using
Psychological Dependence:
• The users feels a “need” or “craves” the drug
• They believe they cannot function without the drug
• Can last longer than physical dependence
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Section 17.3 Commonly Abused Drugs
Drug TermsWithdrawal- the body’s reaction to suddenly no longer
getting that drug• Can be life threatening, must already have a
dependency on the drug
Tolerance- the body’s reaction, or the effect of the drug, is lessened because of repeated use
• It is reversible, can be both physical and psychological, depends on type of drug
Synthetic- made artificially, not naturally occurring
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• A psychoactive drug that slows brain and body reactions is called a depressant.
Depressants
• Depressants slow body functions by decreasing heart and breathing rates and lowering blood pressure.
Examples:1. Alcohol2. Codeine3. Oxycodone4. Morphine5. Marijuana6. Heroin
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• Marijuana is one of the most frequently abused psychoactive drugs.
Effects of Marijuana
• Its main ingredient changes the way information reaches and is acted upon by the brain.
• Side effects of marijuana use include
• distorted perceptions
• difficulties with thinking and problem solving
• loss of motor coordination
• increased heart rate
• feelings of anxiety or paranoia
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Section 17.3 Commonly Abused Drugs
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• A stimulant is a drug that speeds up activities of the central nervous system.
Stimulants
• Stimulants increase
• Physicians sometimes prescribe certain stimulants to treat sleep disorders and behavioral disorders.
• heart rate
• blood pressure
• breathing rate
• alertness
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• Amphetamines (am FET uh meenz) are prescription drugs that are sometimes sold illegally as “speed” or “uppers.”
Amphetamines
• Amphetamine abuse produces feelings of well-being and high energy.
• The effects wear off quickly and the abuser is often left feeling depressed.
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• A stimulant that is related to amphetamines, but is even more powerful, is methamphetamine.
Methamphetamine
• Methamphetamine initially produces a rush, or “high.”
• But, after the rush wears off, the user may become
• confused
• shaky
• anxious
• irritable
• violent
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• Cocaine is a powerful but short-acting stimulant.
Cocaine
• Cocaine is highly addictive.
• When cocaine’s effects wear off, abusers often experience depression, which can be severe.
• Crack is the strongest form of cocaine.
Other example:caffeine, nicotine, speed
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• A hallucinogen (huh LOO sih nuh jun) is a drug that distorts perception, thought, and mood.
Hallucinogens
• Hallucinogens overload the brain with sensory information, causing a distorted sense of reality.
• Abusers
• cannot tell what is real
• may experience memory loss and personality changes
• may be unable to perform normal activities
• may lose track of time and their surroundings
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• The strongest known hallucinogen is lysergic acid diethylamide, or LSD.
LSD
• LSD’s effects are unpredictable—it can either stimulate or depress the central nervous system.
• Abusers experience hallucinations in which they may see colorful visions and mistakenly feel they have superhuman powers.
Mushrooms
• The effects of psilocybin are much like those of LSD, but not as strong.
• Psilocybin is a chemical found in a certain type of mushroom.
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• One of the most dangerous of all drugs is PCP, short for phencyclidine.
PCP
• Because the drug eliminates the sensation of pain, abusers may unintentionally injure or even kill themselves.
• Some PCP abusers develop signs of schizophrenia.
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• Three classes of drugs that are of growing concern in recent years are club drugs, inhalants, and anabolic steroids.
Club Drugs, Inhalants, and Steroids
• The effects of club drugs and inhalants are extremely unpredictable and dangerous.
• Abuse of steroids causes lifelong damage to the body and brain.
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• Club drugs got their name from the fact that they first gained popularity at dance clubs and raves.
Club Drugs
• Their effects are different from person to person and very dangerous.
• While under the effects of rohypnol (roh HYP nawl), a person may be hurt or raped and not even be able to recall the event later on.
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• Anabolic steroids are synthetic drugs that are similar to the hormone testosterone.
Anabolic Steroids
• Steroids are abused primarily by people who want bigger muscles.
• Steroids can make a user’s personality very aggressive.
• Some steroid users become severely depressed.
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A breathable chemical vapor that produces mind-altering effects is called an inhalant (in HAYL unt).
Inhalants
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Vocabulary
depressant A drug that slows brain and body reactions.
barbiturates A class of depressant drugs; also called sedative-hypnotics.
opiate Any drug made from psychoactive compounds contained in the seed pods of poppy plants.
heroin An illegal opiate made from morphine in a laboratory.
stimulant A type of drug that increases the activity of the nervous system.
amphetamines Prescription drugs that are sometimes sold illegally as “speed” or “uppers.”
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Vocabulary
methamphetamine A stimulant that is related to amphetamines, but is even more powerful.
cocaine A drug that is a powerful but short-acting stimulant.
hallucinogen A drug that distorts perception, thought, and mood.
marijuana A drug made from the leaves, stems, and flowering tops of the hemp plant.
club drugs Drugs that first gained popularity at dance clubs and raves.
inhalant A breathable chemical vapor that produces mind-altering effects.
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End of Section 17.3
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