Transcript Tobacco
Chapter 20
The Health Risks
Medical studies have shown that
tobacco use is the leading cause of
preventable death & disability in the US.
About 90% of adult smokers began the
habit as teenagers.
Quitting is very difficult.
The Health Risks
Addictive Drug – a substance that
causes physiological or psychological
dependence
Nicotine – the addictive drug found in
tobacco leaves
Stimulant – a drug that increases the
action of the central nervous system, the
heart, and other organs
Poisonous Substances
Carcinogen
– a cancer-causing
substance
Tar – a thick, sticky, dark fluid
produced when tobacco burns
Destroys cilia and alveoli
Carbon
monoxide - a colorless,
odorless, and poisonous gas
Other forms of tobacco
Pipes,
cigars, and smokeless
tobacco are just as dangerous
as cigarettes
Leukoplakia- thickened, white,
leathery-looking spots on the
inside of the mouth that can
develop into oral cancer
Harmful Effects of Tobacco
Short-term
Long-term
Brain chemistry
changes
Respiration & heart
rate increase
Taste buds dulled,
appetite reduced
Bad breath, yellow
teeth, smell
Chronic
bronchitis
Emphysema
Lung cancer
Coronary heart
disease & stroke
Weakened immune
system
Other Consequences
Costs
to society $167 Billion/ year
Cost to individual $3,561/year
Legal consequences
Reduced tobacco use in teens
Tobacco legislation
Advertising
No-smoking policies
Public places
Family values
Positive peer pressure
Health risks
Strategies for Avoidance
Surround yourself with positive
influences
Reduce peer pressure
Be prepared with refusal skills
Ending the Addiction Cycle
Nicotine withdrawal – the process that
occurs in the body when nicotine, an
addictive drug, is no longer used
Nicotine substitutes – products that
deliver small amounts of nicotine into
the user’s system while he/she is trying
to give up the tobacco habit
Tobacco cessation program – a
course that provides info. & help to
people who want to stop using tobacco
Risks to others
Environmental tobacco smoke (ETS)
– air that has been contaminated by
tobacco smoke
AKA - secondhand smoke
Mainstream smoke – the smoke
exhaled from the lungs of a smoker
Sidestream smoke – the smoke from
the burning end of a cigarette, pipe, or
cigar
What is thirdhand smoke?
Risks to others
Secondhand smoke causes about 3000
deaths/year from lung cancer
Smoking during pregnancy can seriously
harm the unborn baby
Children of smokers are more likely to
be in poor health