Top 1 in Top 10 dangers of tobacco for health.
Tobacco smoke contains more than 7000 substances that are mostly harmful substances, including about 60 substances that are carcinogenic, and one of the most dangerous harmful effects of tobacco is to increase the risk of lung cancer. Risk of lung cancer involves the amount of smoking and smoking time. Currently, smokers who die from lung cancer are 15 times higher than non-smokers, smokers 1 packet per day will be prone to lung cancer 10 times more than the non-smokers; Smokers 2 packets per day are prone to lung cancer by 25 times.
Smoking is also the cause of many cancers of other parts such as larynx, pharynx, throat, esophagus and bladder, kidneys, stomach and cervii.