Smoking studies and research on lung cancer and cardio problems

A United States study found death rates for men aged 45 to 64 to be 6.6 times as high for smokers; in the age group 65 to 84, 11.4 times as high. For women smokers, it is, overall, 4.9 times as high as for nonsmokers and 7.4 times as high for the heavier smokers.

Smoking: American heart Association authorities stated that 100,000 preventable deaths each year are associated with cigarette  as published by the National Cancer Institute, "Smoking in the Death Rates of One Million Men and Women," the conclusions were reached: In the 45 to 54 year age group, deaths from coronary heart disease are 2.8 times as high for men as high for women smoking a pack or more of cigarettes or nonsmokers. 

The greater the number of cigarettes smoked, the inhalation, and the earlier the age when smoking starts, better the death rate. And autopsies of people dying from diseases him coronary heart disease show more plaques, or roughened, on which clots can develop and much more extensive atherosele - the coronary arteries of smokers than nonsmokers.

Many studies show that smokers have larger amounts of cholesterol in the blood than nonsmokers. Other studies indicate that smoking prevent clotting of blood, which increases risk of clot formation in the coronary arteries. Smoking also increases the work load of the heart, forcing it to pump more blood more rapidly because the carbon monoxide from smoke reduces the oxygen-carrying capacity of the blood and impairs the elasticity and gas-exchange capacity of the lungs. 

There is evidence, too, of an association between cigarette smoking and strokes, which annually kill 200,000 Americans. An American Cancer society study found that stroke death rates are 74 percent higher among women and 38 percent higher among men who smoke cigarettes than among nonsmokers.