The document discusses the reasons why people smoke, the health consequences of smoking, and ways to discourage smoking. It notes that some people start smoking to imitate adults or due to stress, curiosity, or peer pressure. It then outlines the damage smoking causes to the mouth, throat, lungs, heart, blood vessels, and brain. Specifically, it mentions smoking coats the mouth and throat with toxic tar, damages lung function, increases heart rate and risk of heart attack, and causes nicotine addiction in the brain. The document concludes by providing anti-smoking slogans encouraging people to enjoy clean air and not start or continue smoking.