虽然我们一直说吸烟有害健康，但是还是有很多青年学生为了显摆个性而去吸烟，到底青年学生为什么喜欢吸烟，是好奇吗？还是为了显酷？
The health risks of tobacco are well known, but kids and teens continue to smoke and use chewing tobacco. Many young people pick up these habits every year — in fact, 90% of all adult smokers started when they were kids. Each day, more than 3,900 kids become regular smokers.
So it's important to make sure kids understand the dangers of tobacco use. Smoking is the leading cause of preventable deaths in the United States, and can cause cancer, heart disease, and lung disease. Chewing tobacco (smokeless or spit tobacco) can lead to nicotine addiction, oral cancer, gum disease, and an increased risk of cardiovascular disease, including heart attacks. Giving kids information about the risks of smoking and chewing tobacco, and establishing clear rules and your reasons for them, can help protect them from these unhealthy habits. You also should know the warning signs of tobacco use and constructive ways to help someone kick the habit. The Facts About TobaccoOne of the major problems with smoking and chewing tobacco has to do with the chemical nicotine. Someone can get addicted to nicotine within days of first using it. In fact, the nicotine in tobacco can be as addictive as cocaine or heroine. Nicotine affects mood as well as the heart, lungs, stomach, and nervous system. Other health risks include short-term effects of smoking such as coughing and throat irritation. Over time, more serious conditions may develop, including increases in heart rate and blood pressure, bronchitis, and emphysema. Finally, numerous studies indicate that young smokers are more likely to experiment with marijuana, cocaine, heroin, or other illicit drugs.
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