Addictive Substances – chemicals that a person becomes
We will study 5 types of drugs
-Stimulants – speed up the process of the nervous system, so a
person may stay awake longer or stay excited.
-Example stimulants: methamphetamine (=meth=speed),
cocaine, caffeine, nicotine
One year of meth use
-Depressants –slow down the activities of the central nervous
-They are taken to relax a person
-Examples: alcohol, barbiturates
-Alcohol causes slow brain activity and misjudgment…….
Narcotics – taken to relieve pain and make you sleep easier.
They affect the body by depressing the nervous system.
Examples: opium, heroin, morphine, codeine
Before and After
Hallucinogens – make you see things that are not real.
Examples: LSD, cannabis (marijuana)
Inhalants are sniffed or breathed as vapor
Examples: cleaning solvents, glue, paint, aerosol sprays, nitrous
-Smoking – single greatest cause of preventable death in the world
-Smoke causes lung cancer, heart diseases, bronchitis, emphysema
-There are over 19 known carcinogens in cigarette smoke
-Carcinogen = chemical that causes cancer
Cigarette smoke damages teeth
Cigarette smoke damages lungs
Cigarette smoke can kill other people
Lung cancer X-ray
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