Talk about some effects of smoking. Give some advice to give up smoking. Smoking shortens your longevity. According some scientific studies, much cigarette intake regularly damages your lung, causing pneumonia, tuberculosis, and even lung cancer. As for heavy smokers, they may get addicted with drug, a kind of refined tobacco or opium, making them loose laboring ability, mental consciousness, and die gradually. To give up smoking is not easy. It requires us to have self-consciousness and high etermination. We must not think about it in any situation. We must avoid contacting with all processed forms of tobacco, and addicted friends. We also must follow doctor advice and find some healthy pastimes for ourselves. To quit smoking successfully, we must sufficiently know its harmful effect, and have strong energy to say good-bye to it.