The influence of tobacco smoke on the respiratory system


Tobacco smoke is a complex mixture of several thousand chemicals that enter the smoker’s lungs. Among them there are hundreds of harmful substances. Tobacco smoke contains substances with proven carcinogenic effect, as well as harmful gases and tar substances that damage the bronchi. The smoke contains, among others, carbon monoxide (a gas that causes carbon monoxide), sulfur compounds, arsenic and lead, as well as formaldehyde and hydrogen cyanide.

Smoking harms your lungs in two ways
First, it significantly increases the risk of developing lung cancer (one of the most common cancers in the world). About 30,000 people develop lung cancer every year in Poland! Most of these cases are caused by smoking! The link between smoking and lung cancer is scientifically proven. The risk of cancer depends on the length of smoking and the number of cigarettes smoked per day. Smoking large amounts of tobacco can increase the risk of lung cancer by a factor of 100! But even smoking small amounts of cigarettes (including light cigarettes) is dangerous to health! By stopping smoking, your risk of lung cancer is slowly lowered.

It should also not be forgotten that smoking increases the risk of developing other cancers, such as the larynx or bladder, and also greatly increases the risk of heart attack, stroke, lower limb ischemia and other serious diseases.


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