Tobacco Chapter 24

Healthy Lung vs. Smoker’s Lung

Smoking The primary reason youth start smoking is because of peer pressure. Nicotine: The addictive drug found in tobacco. Carcinogens: Cancer causing substances in tobacco.

Smoking Carbon monoxide is found in cigarette smoke. Smokeless Tobacco: Tobacco sniffed or chewed.

Negative Effects Raises blood pressure by causing vessels to constrict. Your heart rate also increases simultaneously. Increases risk of cancer: Liver Lung Kidney Oral Throat

Negative Effects Bronchitis: inflammation of the bronchioles Emphysema: destruction of the alveoli Pneumonia: Inflammation of the lungs Inefficient breathing by constricting the bronchioles Wrinkles Yellow Skin Heart Disease Asthma

Negative Effects Nicotine Addiction: relying on the drug in tobacco for feelings of pleasure and/or alertness. Nicotine can cause a psychological and physical dependence. Nicotine withdrawal can occur even 30 minutes after the last cigarette. Look at p. 407 in Prentice Hall book.

COPD Chronic Obstructive Pulmonary Disease: An inability to fully fill your lungs with air. It is permanent and 90 percent of all cases are caused by smoking.

Media Appeal P. 404 in Prentice Hall text.

What’s in a cigarette Acetone Ammonia Arsenic Butane Cadmium Carbon Monoxide Formaldehyde Propane Uranium And many more!

Still think cigarettes are not an addictive drug?

Tobacco Pipes and cigars are two other forms of smoked tobacco Secondhand smoke: smoke inhaled by non-smokers Mainstream Smoke: smoke that smokers blow out of their mouth Sidestream Smoke: smoke that actually comes from the burning tobacco

Smokeless Tobacco Third-Hand Smoke A.K.A. Chew: introduces tar and other unhealthy juices into the mouth Leukoplakia: thick, white, leather appearing spots on the inside of the mouth that can develop into cancer cells

Smoking and Pregnancy Cuts off oxygen supply to the fetus Can result in low birth weight, down syndrome, cerebral palsy,other genetic defects, or death. Also is a leading risk factor of SIDS.

Quitting: Why and How? Nicotine withdrawal: What your body goes through when the addictive chemical is removed. Nicotine Substitutes: patches and gum Support Groups Cold Turkey Benefits shown on p. 418 in Prentice Hall text.