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The Health Risks of 
Tobacco Use (2:39) 
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The chemicals in all tobacco products 
harm the body.
addictive drug 
nicotine 
stimulant 
carcinogen 
tar 
carbon monoxide 
smokeless tobacco 
leukoplakia
Health Risks of Tobacco Use 
All forms of tobacco contain chemicals that 
are dangerous to your health. 
Tobacco use is the leading cause of preventable 
death and disability in the United States.
Health Risks of Tobacco Use 
Any form of tobacco use, such as smoking, 
chewing, or dipping tobacco, can cause health 
problems. 
Smoking has been linked to lung disease, cancers, 
and heart disease.
Health Risks of Tobacco Use 
About 90 percent of 
adult smokers 
began the habit as 
teenagers. 
It’s easier to avoid 
tobacco use rather 
than quit later.
Nicotine 
Tobacco users have difficulty quitting because 
tobacco contains an addictive drug. 
Addictive drug 
A substance that causes physiological 
or psychological dependence
Nicotine 
All tobacco products contain nicotine. 
Nicotine 
The addictive drug found in 
tobacco leaves
Nicotine 
Nicotine is a stimulant that raises blood pressure 
and increases the heart rate. 
Stimulant 
A drug that increases the action 
of the central nervous system, 
the heart, and other organs
Poisonous Substances in Tobacco Smoke 
Tobacco is an addictive and toxic drug and a 
carcinogen. 
Carcinogen 
A cancer-causing 
substance
Tar 
Cigarette smoke contains tar. 
Tar 
A thick, sticky, dark fluid 
produced when tobacco burns
Tar 
Tar damages 
a smoker’s 
respiratory 
system by 
paralyzing and 
destroying cilia 
destroying the 
alveoli 
damaging lung 
tissue
Carbon Monoxide 
Carbon monoxide is also in cigarette smoke. It 
deprives the body’s tissues and cells of oxygen. 
Carbon monoxide 
A colorless, odorless, and 
poisonous gas
Pipes, Cigars, and Smokeless Tobacco 
No tobacco product is safe to use. 
The dangers of tobacco use are not limited to 
smoking cigarettes.
Pipes, Cigars, and Smokeless Tobacco 
Cigarette filters do not 
protect smokers from 
more than 50 
carcinogens, including 
cyanide and arsenic, 
which are in tobacco 
products.
Pipes, Cigars, and Smokeless Tobacco 
The smoke from pipes and cigars also causes 
serious health consequences. 
Cigars contain significantly more nicotine and 
produce more tar and carbon monoxide than 
cigarettes.
Pipes, Cigars, and Smokeless Tobacco 
The harmful chemicals of smokeless tobacco are 
absorbed into the body at levels up to three times 
the amount of a single cigarette. 
Smokeless tobacco 
Tobacco that is sniffed 
through the nose, held in 
the mouth, or chewed
Pipes, Cigars, and Smokeless Tobacco 
Using smokeless tobacco also irritates the 
sensitive tissues of the mouth, causing 
leukoplakia. 
Leukoplakia 
Thickened, white, leathery-looking 
spots on the inside of the mouth 
that can develop into oral cancer
Harmful Effects of Tobacco Use 
Tobacco use causes both short-term and 
long-term damage to your body. 
Health officials have warned the public about the 
dangers of tobacco use for several decades.
Long-Term Effects 
Short-Term Effects 
Brain chemistry changes. 
Respiration and heart rate increase. 
Taste buds are dulled and appetite is reduced. 
Bad breath, yellowed teeth, and smelly hair, skin, and clothes.
Short-Term Effects 
Chronic bronchitis 
Emphysema 
Lung cancer 
Long-Term Effects 
Coronary heart disease and stroke 
A weakened immune system
Long-Term Effects 
Smokers cause severe damage to their lungs. 
Compare the healthy lung on the left with the one 
damaged by tobacco on the right.
Long-Term Effects 
Nervous System 
 Addiction 
 Stroke 
Respiratory System 
 Coughing 
 Chronic bronchitis, 
emphysema, lung 
cancer 
Circulatory System 
 Increased heart rate and 
blood pressure 
 Hardened arteries, 
decreased blood flow 
 Heart attack, stroke
Long-Term Effects 
Excretory System 
 Cancer of the bladder 
 Cancer of the kidneys 
Digestive System 
 Cancers of the mouth, pharynx, 
larynx, and esophagus 
 Gum recession, tooth decay, 
tooth loss 
 Nausea, vomiting, diarrhea 
 Cancers of the stomach and 
pancreas
Long-Term Effects
Other Consequences of Tobacco Use 
As well as health risks, tobacco use is costly. 
Making the decision to avoid the use of tobacco 
products will safeguard your health.
Other Consequences of Tobacco Use 
Costs to Society Tobacco-related illnesses cost the United 
States about $165 billion each year. 
Costs to 
Individuals 
A person smoking one pack of cigarettes a 
day will spend about $1,500 a year on the 
habit. 
Legal 
Consequences 
Selling tobacco products to minors is illegal. 
Using tobacco at school can lead to 
suspension or expulsion.
After You Read 
Reviewing Facts and Vocabulary 
1. What is an addictive drug? What is the 
addictive drug in tobacco? 
A substance that causes physiological or 
psychological dependence; nicotine
After You Read 
Reviewing Facts and Vocabulary 
2. List three types of toxic substances 
found in cigarette smoke. Why are these 
substances harmful? 
Nicotine, tar, carbon monoxide; nicotine 
causes addiction, tar causes such diseases 
as emphysema and lung cancer, carbon 
monoxide deprives the body of oxygen.
After You Read 
Reviewing Facts and Vocabulary 
3. Explain four ways using tobacco 
immediately affects your body. 
Any four: Brain chemistry changes; respiration 
and heart rates increase; taste buds are 
dulled; appetite is reduced; users have bad 
breath, yellowed teeth, and smelly clothes
Ch20 01

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Ch20 01

  • 1. The Health Risks of Tobacco Use (2:39) Click here to launch video Click here to download print activity
  • 2. The chemicals in all tobacco products harm the body.
  • 3. addictive drug nicotine stimulant carcinogen tar carbon monoxide smokeless tobacco leukoplakia
  • 4. Health Risks of Tobacco Use All forms of tobacco contain chemicals that are dangerous to your health. Tobacco use is the leading cause of preventable death and disability in the United States.
  • 5. Health Risks of Tobacco Use Any form of tobacco use, such as smoking, chewing, or dipping tobacco, can cause health problems. Smoking has been linked to lung disease, cancers, and heart disease.
  • 6. Health Risks of Tobacco Use About 90 percent of adult smokers began the habit as teenagers. It’s easier to avoid tobacco use rather than quit later.
  • 7. Nicotine Tobacco users have difficulty quitting because tobacco contains an addictive drug. Addictive drug A substance that causes physiological or psychological dependence
  • 8. Nicotine All tobacco products contain nicotine. Nicotine The addictive drug found in tobacco leaves
  • 9. Nicotine Nicotine is a stimulant that raises blood pressure and increases the heart rate. Stimulant A drug that increases the action of the central nervous system, the heart, and other organs
  • 10. Poisonous Substances in Tobacco Smoke Tobacco is an addictive and toxic drug and a carcinogen. Carcinogen A cancer-causing substance
  • 11. Tar Cigarette smoke contains tar. Tar A thick, sticky, dark fluid produced when tobacco burns
  • 12. Tar Tar damages a smoker’s respiratory system by paralyzing and destroying cilia destroying the alveoli damaging lung tissue
  • 13. Carbon Monoxide Carbon monoxide is also in cigarette smoke. It deprives the body’s tissues and cells of oxygen. Carbon monoxide A colorless, odorless, and poisonous gas
  • 14. Pipes, Cigars, and Smokeless Tobacco No tobacco product is safe to use. The dangers of tobacco use are not limited to smoking cigarettes.
  • 15. Pipes, Cigars, and Smokeless Tobacco Cigarette filters do not protect smokers from more than 50 carcinogens, including cyanide and arsenic, which are in tobacco products.
  • 16. Pipes, Cigars, and Smokeless Tobacco The smoke from pipes and cigars also causes serious health consequences. Cigars contain significantly more nicotine and produce more tar and carbon monoxide than cigarettes.
  • 17. Pipes, Cigars, and Smokeless Tobacco The harmful chemicals of smokeless tobacco are absorbed into the body at levels up to three times the amount of a single cigarette. Smokeless tobacco Tobacco that is sniffed through the nose, held in the mouth, or chewed
  • 18. Pipes, Cigars, and Smokeless Tobacco Using smokeless tobacco also irritates the sensitive tissues of the mouth, causing leukoplakia. Leukoplakia Thickened, white, leathery-looking spots on the inside of the mouth that can develop into oral cancer
  • 19. Harmful Effects of Tobacco Use Tobacco use causes both short-term and long-term damage to your body. Health officials have warned the public about the dangers of tobacco use for several decades.
  • 20. Long-Term Effects Short-Term Effects Brain chemistry changes. Respiration and heart rate increase. Taste buds are dulled and appetite is reduced. Bad breath, yellowed teeth, and smelly hair, skin, and clothes.
  • 21. Short-Term Effects Chronic bronchitis Emphysema Lung cancer Long-Term Effects Coronary heart disease and stroke A weakened immune system
  • 22. Long-Term Effects Smokers cause severe damage to their lungs. Compare the healthy lung on the left with the one damaged by tobacco on the right.
  • 23. Long-Term Effects Nervous System  Addiction  Stroke Respiratory System  Coughing  Chronic bronchitis, emphysema, lung cancer Circulatory System  Increased heart rate and blood pressure  Hardened arteries, decreased blood flow  Heart attack, stroke
  • 24. Long-Term Effects Excretory System  Cancer of the bladder  Cancer of the kidneys Digestive System  Cancers of the mouth, pharynx, larynx, and esophagus  Gum recession, tooth decay, tooth loss  Nausea, vomiting, diarrhea  Cancers of the stomach and pancreas
  • 26. Other Consequences of Tobacco Use As well as health risks, tobacco use is costly. Making the decision to avoid the use of tobacco products will safeguard your health.
  • 27. Other Consequences of Tobacco Use Costs to Society Tobacco-related illnesses cost the United States about $165 billion each year. Costs to Individuals A person smoking one pack of cigarettes a day will spend about $1,500 a year on the habit. Legal Consequences Selling tobacco products to minors is illegal. Using tobacco at school can lead to suspension or expulsion.
  • 28. After You Read Reviewing Facts and Vocabulary 1. What is an addictive drug? What is the addictive drug in tobacco? A substance that causes physiological or psychological dependence; nicotine
  • 29. After You Read Reviewing Facts and Vocabulary 2. List three types of toxic substances found in cigarette smoke. Why are these substances harmful? Nicotine, tar, carbon monoxide; nicotine causes addiction, tar causes such diseases as emphysema and lung cancer, carbon monoxide deprives the body of oxygen.
  • 30. After You Read Reviewing Facts and Vocabulary 3. Explain four ways using tobacco immediately affects your body. Any four: Brain chemistry changes; respiration and heart rates increase; taste buds are dulled; appetite is reduced; users have bad breath, yellowed teeth, and smelly clothes