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Smoking is one of the leading causes of death among Americans. What you don't hear are many of . You may have heard that smoking causes cancer, but there are many more effects of smoking than just cancer. One of the main problems of smoking is that people have a ....

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.... heart disease are due to smoking. By ages 75 - 84 years, the proportion of CHD deaths due to smoking in current smokers falls to 14%. Even smoking one cigarette causes a wide range of physiological reactions. The carbon monoxide inhaled when a cigarette is lit has a number of toxic effects on the body. The first is the impairment of oxygen transportation in the blood. This impairs muscular performance, and may also affect the vision, particularly at altitude. In general, smokers are less fit than non-smokers, performing less well in both endurance and short-term exercises. Smokers are slower, reach exhaustion earlier, and achieve lower goals. These ....