I am doing my drug project on smoking. In some countries, smoking causes one-third of all cancer deaths. It causes diseases of the heart, lung, digestive tract, kidney, bladder. There are many other health risks. There are over 4,000 chemicals in cigarette smoke and 200 of those are known poisons. Pregnant women who smoke may have miscarriages, low birth weight, still birth, and premature birth.

There are a few reasons why people smoke. Most teenagers smoke because they want to rebel, they think it will make them cool, and, if everyone is doing it, it makes them feel like part of a group. Adults usually smoke because they find it relaxing or refreshing. These two opposite effects are caused by nicotine. Another reason people smoke is because ads such as Joe Camel and Marlboro Man, that make smoking seem cool, sexy, and attractive. Also, because it is seen in movies, on T.V., and at sporting events.

Cigarettes have one main dangerous ingredient in them. That dangerous ingredient is nicotine. It is a poisonous alkaloid and is what makes smoking addictive. It can act like a stimulant or a tranquilizer. In tobacco smoke, there are two really dangerous elements. They are

carbon monoxide and tar. Carbon monoxide is a gas. Carbon monoxide disrupts the supply of oxygen to tissues and organs, which includes the brain and heart. Tar is made up of different particulate substances. Tar collects on the airways of the lungs and impairs their functioning. If a person gets too many particulates on their lungs, they can cause chronic bronchitis and emphysema.

As I mentioned before, cigarette ads, such as Joe Camel and Marlboro Man, influence people to smoke. The tobacco industry spends over five billion dollars a year on advertising. They have even been banned from having television and radio commercials. Some say that the cigarette companies target teenagers in their ads, but the companies deny that their ads are directed towards anybody under legal smoking age. One tobacco company's lawyer said,"Nicotine is addictive. We are, then, in the business of selling nicotine, an addictive drug effective in the release of stress mechanisms", in response to people saying that tobacco companies are intentionally adding nicotine to keep people addicted.

Second-Hand smoke causes 3,000 deaths from lung cancer, 13,000 deaths from other cancers, and 37,000 deaths from lung disease in the United States, each year. Second-Hand smoke, or passive smoke, is not as hazardous as mainstream smoke, it is still a dangerous matter. More people die each year from second-hand smoke than from car accidents. A report by the Journal of the American Colle

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Approximate Word count = 995
Approximate Pages = 4 (250 words per page double spaced)