Chapter24 smoking
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Transcript of Chapter24 smoking
Smoking
• Every day: 6000 teens light up for the first time– 3000 become regular smokers
• 9 of 10 adult smokers began as teens– 1/3 of these will die from smoke related
causes
• 2.6 million packs of cigarettes are sold illegally to minors every day
Nicotine
• Nicotine – the addictive drug in cigarettes is a poison stimulant– People smoke to reduce the craving for the
nicotine
• A stimulant increases the action of the CNS, heart and other organs– Raises heart rate and blood pressure
Tar
• Flavor is due to the tar in tobacco
• Tar is thick, sticky, dark fluid produced when tobacco burns
• It penetrates the airways and lungs
• It combines with the drying effect of the smoke to paralyze or destroy the cilia
• Contains several substances known as carcinogens
Carbon Monoxide
• A colorless, odorless, poisonous gas in smoke that passes through the lungs into the blood
• Same as automobile exhaust fumes
Other tobacco
• Smokeless tobacco – sniffed or chewed• Myths:
– Its “cool”– Safer because it is not “taken” into the lungs
• Truth– Includes the same health risks– Cancer if the lip, mouth, throat– Damage to the teeth and gums– Damage to the digestive system
Skoal Flavors:
Wintergreen***
Peach
Citrus
Berry blend*
Vanilla
Cherry
Effects of smoking on the body
Diseases of the respiratory system
http://www.youtube.com/watch?v=IQ4n7g31RlE
Chronic bronchitis
• bronchi are irritated. As tar builds up, cilia become useless resulting in chronic coughing and excessive mucus secretion
Emphysema
• Involves destruction of the tiny air sacs in lungs
• As walls are destroyed, they lose their elasticity and provide less total surface area for oxygen to be absorbed
• Instead of using 5% of total energy to breathe, now using 80%
Lung cancer
• Leading cause of death in males
• Becoming a more significant cause of death in females
Disease of the circulatory system
• Nicotine causes the heart to speed up
• It constricts blood vessels reducing blood flow to the limbs, resulting in a tingling sensation in hands and feet.
• Increases the chance for arteriosclerosis
• Hardening of the arteries which gradually clogs the vessels to the hearts
• Increases the risk of heart attack by 3x
Smoking
• Raises the blood pressure
• Increases the risk of stroke
• Increases the risk of coronary heart disease
Dangers of smokeless tobacco
• Addictive• Produces increased saliva – though most
is spit out, some is unconsciously swallowed, introducing carcinogens into the digestive and urinary systems.
• Contains chemicals that delay “healing.”• Cause leukoplakia – thickened, white,
leathery-appearing spots on the inside of the mouth – can turn to cancer
Quitting
• Nicotine withdrawal
• May feel nervous, moody, difficult sleeping
Strategies for quitting
• Nicotine filters
• Deliver smaller doses of nicotine
• Nicotine gum
• Nicotine patch
• Cold turkey
Benefits of quitting
• Fitness increases as breathing becomes easier
• Reduce chance of stroke and heart disease
• Reduces anxiety of offending others and finding places to smoke
Tips for quitting
• Make a list of reasons for quitting
• Set a specific date and stick to that date
• Set short term goals to reinforce decision
• Decide which approach to take
• Get your environment ready including setting up a support system