Despite such progress, tobacco use remains widespread. About one in four American adults mokes, and each more than 400,000 Americans die from effects of cigarette smoking. Nonsmokers subjected to the smoke of others also suffer: Exposure to environmental tobacco smoke causes more than 50,000 annual deaths among nonsmokers. Smoking by pregnant women is responsible for about 10% of all infant deaths in this country. Smokeless tobacco and cigars are regaining popularity. The use of smokeless tobacco tripled since 1972; cigar smoking has increased 66% in the last 5 years.

At low doses, nicotine acts as a stimulant: it increases heart rate and blood pressure and can enhance alertness, concentration, rapid information processing, memory, and learning. People type faster on nicotine, for instance. At high doses, on the other hand, nicotine appears to act as a sedative; it can reduce aggressiveness and alleviate the stress response. Tobacco users may be able to fine-tune nicotine's effects and regulate their moods by increasing or decreasing their intake of the drug. Studies have shown that smokers experience milder mood variation than nonsmokers while performing long, boring tasks or while watching emotional movies, for example.

There are several methods you can use to quit smoking. How successful any one method will be depends on your personality, how heavily addicted to cigarettes you are, and whether your family, social, school, and work environments will help or hinder your efforts to quit.

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Approximate Word count = 1474
Approximate Pages = 6 (250 words per page double spaced)