The University of Miami Medical School

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normal pink color, upper panel. As you can see, the lungs of the smoker are stained black from inhaling the tars in tobacco smoke, lower panel. These are the very same black oily tobacco tars that cause cancer, chronic bronchitis and emphysema, as also seen in the lower panel. This was a clean handkerchief. It represented clean lungs. In this experiment, smoke from two Marlboro cigarettes was blown forcefully through this clean handkerchief. Even though the cigarettes had a filter, you can see how much disease producing tar got through to stain the handkerchief brownish black (slide 33). If this large amount of disease producing tar came from only two filter tip cigarettes, imagine how black and diseased your lungs get after smoking hundreds or thousands of cigarettes. If you're thinking about smoking, try this experiment and see for yourself. Also, see the same experiment performed by blowing the smoke from two marijuana cigarettes through a clean handkerchief. As seen, there is just as much or more disease producing tar in marijuana smoke (slides 34, 34a).

VIDEO SEGMENT 19
"What problems does smoking cause teenagers?"
"At first I enjoyed smoking. I loved the feeling of, I'm cool, I'm a man, but it's not like that. I wake up and I can't help myself but to smoke. I tried quitting many times. It hurts to stop. I'm addicted. I used to trick myself and say I'll never get addicted. All my friends, no, I'll never get addicted, but just like that. The more you trick yourself the worse it's going to be. It's embarrassing to me to have to depend on a cigarette. You know, I have to have one, I have to have one. It's very embarrassing to me. When I'm with people that don't smoke I feel like I have to separate myself from the group in order to have a cigarette and it's, like I said, it's embarrassing. A lot of girls do not like the smell of cigarettes, do not enjoy being around people who smoke." Jay Taylor is a nineteen-year-old smoker who started smoking when he was sixteen years of age (slide 35). After only three years of smoking, pulmonary function testing of his small airways at the University of Miami Medical Center revealed that he already has the lungs of a sixty-six year old non-smoking man. Jay already has difficulty participating in competitive sports with his current lung function. If he continues to smoke, he's clearly heading toward disabling emphysema and chronic bronchitis with shortness of breath at rest and the need for continuous oxygen. "Every time I light up a cigarette, I think about

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