Medical studies

The medical studies have determined that the total index of mortality is higher in smoking men of medium age than in those twice that don't smoke; and higher still in those that smoke more cigarettes a day or they have smoked for more time.

Among the cancers caused by the tobacco, it heads the list that of lung, so that the index of this illness is seven times adult in the smokers that in the non smokers. Also, the smokers have five times more risk of developing larynx cancer, esophagus and in the buccal cavity. It is also attributed to the tabaquismo a third of all the bladder cancers, kidney and pancreas.

The tabaquismo also quintuples the risk of death for chronic bronchitis and emphysema, and it duplicates it in deaths for coronary illnesses and of the heart. A report of 1988 based on a study on 4.255 residents of a neighborhood of Boston (USA) it indicated that the tabaquismo increases the apoplexy risk in 50%, 40% in the men and 60% in the women. Another investigation has demonstrated that the mothers that smoke give to light with more frequency to premature children or with little weight, due probably to the smallest affluence of blood to the placenta. Three studies published in 1981 point that in the couples in which one of the spouses is smoking passive, this suffers bigger risk of lung cancer, and other studies reveal that the illness index is bigger in children not smoking parents' smokers. In Spain he/she has been considered that 14% of the total of the deaths is due to the tobacco. The daily consumption of a package of cigarettes shortens 6 years the expectation of life, it multiplies for 3 the labor drops and in 15% the duration of the drops for illness.

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