Why Does Smoking Cause Lung Cancer?

Smoking cigarette is the most common known causes of lung cancer. Not only active smokers who have risk of the cancer, but also the secondhand smokers. In a cigarette consist of thousands dangerous chemical, it will be more dangerous if a smokers smoke everyday.

1. Active smokers

Cigarette smoking is probably the most closely related link to developing lung cancer. A person who smokes two packs or more of cigarettes per day has a one in seven chance of developing lung cancer. Those that smoke one pack of cigarettes per day have a twenty-five times greater chance of developing lung cancer than a non-smoker. In addition, those people that smoke a pipe or cigar have a five times greater chance of developing lung cancer than a non-smoker.

2. Secondhand smokers

Also known as passive smoking, people exposed to secondhand smoke on a regular basis will have a higher risk of developing lung cancer, even if they do not smoke themselves. Studies have shown that those who live with a smoker have a 24% greater risk of developing lung cancer than most non-smokers. Doctors estimate that about 3000 lung cancer deaths a year are related to secondhand smoke.

Based on the explanation above, smoke cigarette is so dangerous for smokers, their friend and family who close them. Remember that smokers are not alone, they have environment and social activities who involve other people. Therefore, the smoking causes lung cancer is a fact which should be avoided.

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