Friday, November 6, 2009
Tobacco smoke contains over 4 000 chemicals including over 60 carcinogens. Extremely harmful to the smoker, it is not without risk to his entourage. Beyond the immediate discomfort, the health consequences are numerous.
Do you think the non-inhaled smoke escaping from the cigarette (called secondary) contains more toxic (carbon monoxide, nitrogen oxides ...) and carcinogens (tar, benzene ...) than that inhaled by the smoker ... Suffice to say that passive smoking is not without risk.
Risk for adult
Beyond the immediate irritation of the eyes, nose and throat, passive smoking can cause or exacerbate many respiratory diseases (infections, asthma disease, chronic pulmonary obstructive ...). But that's not all, smoking your neighbor also increases your risk of suffering from lung cancer and coronary events.
Smoking passifLe risk of heart disease is increased by 25% for passive smoking at home or work2. Relayed by the American Heart Association, American experience has hit the headlines in November 20053. The ban on smoking in public places (bars, restaurants, bowling ...) in a small town in Montana helped bring down the incidence of stroke more than a quarter in two years! More recently, during a congress of the same prestigious American Association, Prof. Lightwood University of San Francisco estimated that the elimination of passive smoking could prevent 228 000 new cases of cardiovascular disease and 119 000 deaths the next 25 years 4! Another new discovery, U.S. researchers have found a link between active and passive smoking and development of insulin resistance, considered a pre-condition diabète5;
Risks of diseases of the lungs:
Adults with asthma are particularly sensitive to tobacco smoke because their respiratory systems are forced to absorb more air and thus more smoke polluted. In addition, people with chronic bronchitis and bronchial hyper-reactivity suffer from cigarette smoke can aggravate their condition.
Risk of cancer:
Passive smoking over an extended period increases the risk of lung cancer (26% if the spouse smokes) 1. So we thought that the clinical observations suggest that female non-smokers were more often affected (as the left suggest KPB6 survey conducted by the College of Lung General Hospital), a large U.S. study concludes that non-smokers are equally affected by lung cancer irrespective sexe7. Finally, cancers of the larynx, the upper aero-digestive tract, pancreas and cervix are related to smoking. The link with passive smoking thus seems highly possible. Only the link with cancers of the sinus is now established, it is doubled;