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Chapter 21 Tobacco

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Chapter 21 Tobacco Lesson One The Effects of Tobacco Use Pgs 540-545 Tobacco Use is a Serious Health Risk Tobacco use is the number one cause of preventable disease ... – PowerPoint PPT presentation

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Title: Chapter 21 Tobacco


1
Chapter 21Tobacco
  • Lesson One
  • The Effects of Tobacco Use
  • Pgs 540-545

2
Tobacco Use is a Serious Health Risk
  • Tobacco use is the number one cause of
    preventable disease
  • All tobacco products must carry warning labels
  • Still teens begin to smoke, chew, and dip

3
Nicotine
  • Tobacco contains nicotine, which is an addictive
    drug
  • Nicotine is found in tobacco leaves
  • Nicotine is a stimulant, which increases the
    action of the central nervous system-increases
    heart rate and blood pressure

4
Cigarette Smoke
  • The smoke from burning tobacco is toxic
  • Tobacco smoke is a cancer-causing substance
    called a carcinogen

5
Cigarette Smoke
  • Cigarette smoke contains tar, a thick sticky dark
    fluid produced when tobacco burns
  • Tar penetrates a smokers respiratory system and
    destroys structures in the airways and damages
    the lungs and lung tissue

6
Cigarette Smoke
  • Carbon monoxide is a compound found in cigarette
    smoke that is a colorless, odorless, and
    poisonous gas that gets into the blood and
    deprives the tissues and cells of oxygen. It
    increases the risk of high blood pressure and
    heart disease

7
Pipes and Cigars
  • Cigars have more nicotine and produce more tar
    than cigarettes
  • Pipe and cigar smokers can develop cancer of the
    lip, mouth, and throat

8
Smokeless Tobacco
  • Smokeless tobacco is a sniffed through the nose,
    held in the mouth, or chewed
  • It contains nicotine and 28 carcinogens

9
Smokeless Tobacco
  • Smokeless tobacco is just as addictive as smoked
    tobacco
  • Because it is held in the mouth it delivers two
    to three times the nicotine as a cigarette
  • Causes leukoplakia (white spots in the mouth)
    that can develop into cancer

10
Smokeless Tobacco Damage
  • Smokeless tobacco users sometimes require
    surgery to remove the cancer and infected tissue
  • The surgery leaves the person with obvious
    deformities

11
Short-Term Effects of Tobacco Use
  • Changes in brain chemistry 1. the addictive
    properties cause the body to crave more 2. user
    experiences withdrawal symptoms like headaches
    nervousness
  • Increased respiration and heart rate breathing
    during exercise is difficult and nicotine can
    cause an irregular heart rate

12
Short-Term Effects of Tobacco Use
  • Dulled taste buds and reduced appetite many
    smokers lose the ability to enjoy food
  • Bad breath, smelly hair, clothes, and skin
    unattractive effects that may cause others to
    avoid the user

13
Long-Term Effects of Tobacco Use
  • Chronic bronchitis which develops because the
    cilia no longer function and the lungs are built
    up with tar
  • Emphysema is a disease that destroys the air sacs
    in the lungs so the person must use 80 of their
    energy just to breathe

14
Long-Term Effects of Tobacco Use
  • Lung cancer occurs when the cilia are destroyed
    and mucous cannot be expelled
  • Coronary heart disease and stroke because
    nicotine reduces circulation and blood flow and
    adds to plaque build-up in the artery walls

15
Other Consequences
  • Legal 1. selling tobacco products to minors is
    illegal 2. schools prohibit the use of tobacco
    products so a student may be suspended or
    expelled
  • Social tobacco users may be excluded socially
    because of the smell and secondhand smoke
  • Financial tobacco products are expensive-smokers
    can spend 2000 a year on cigarettes
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