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What is in a cigarette?• Nicotine-
– Highly addictive, naturally in tobacco– Raises heart rate and blood pressure and breathing rate– May cause sweating, nausea and diarrhea
• Tar– Thick, sticky fluid produced when tobacco is burned– Starts as a gas, then becomes solid in lungs– Coats lungs so oxygen can’t be used by body– A carcinogen- it causes cancer
• Carbon monoxide– Odorless, colorless poisonous gas in tobacco smoke– http://
www.youtube.com/watch?v=pPtCZawoIbw&feature=related
Tobacco Use
• Addiction can happen with a single use or over a longer period of time.
• 4 stages of addiction:– 1. First Use– 2. Occasional use– 3. Regular Use– 4. Addiction
How tobacco effects the body
Changes the way a person looks and smellsIncreases heart beat and blood pressureDrains a person’s energyDamages internal organsInterferes with body functions
The body
• Brain- nicotine causes smokers to become addicted
• Mouth, teeth and throat- bad breath, stained teeth, loss of senses, cancer & gum disease
• Lungs- blocks airways, impairs lungs, & lung cancer
• Skin- wrinkles & stained skin
• Fingers- stain
• Heart- clogging of arteries, increased blood pressure, heart attack & stroke
• Stomach, colon, bladder- ulcers & cancer
• Blood vessels- narrowed
• http://www.youtube.com/watch?v=SwYEFu-GKP4
Cancer
• Abnormal cells grow and replace healthy cells• High percentage of smokers get cancer– Lung, mouth, throat, breast, pancreatic, colon,
bladder, kidney, liver
Emphysema
• The air sacs in the lungs become filled with tar and damaged
• The body doesn’t get enough oxygen• More than 100k people die each year• 90% of cases are caused by smoking
Other diseases
• Asthma- airways become narrowed or blocked making it hard to breath.– Caused by smoking or secondhand smoke in kids
• Bronchitis- mucus blocks the airway• Other infections- colds & pneumonia– Smoking robs the body of vitamin C, weakening the immune system
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