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Why do non-smokers get lung cancer?
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If you are one of those who thinks only smokers can get cancer. You are mistaken. It’s not always that people who smoke suffers from the risk of getting the disease. In a study it has been found that up to 20% lung tumors develop in people who have never smoke in their lifetime.
Research is being done for different factors that lead to lung cancer in people who have never smoked. Some of the factors that are known so far are:
Researchers identified radon as one of the primary cause of lung cancer after smoking. Radon gas is a byproduct of uranium breaking down, which can be found in the air but it’s generally innocuous. The danger arises when this radioactive gas gets trapped and concentrated which could happen in lower floors of some homes and sometimes in mines.
Radon has no odor and can’t be seen. Therefore, the only way to know it exists is to test for it
Around 20% to 40% of lung tumors in non-smokers are caused by secondhand smoke, also called passive smoke. It’s of two types:
Sidestream Smoke: It’s more perilous of the two and happens when a non-smoker inhales smoke from the lighted end of a smoker’s cigar or cigarette.
Mainstream Smoke: It’s when a non-smoker inhales the smoke exhaled by a smoker.
Some people are more likely to get affected by secondhand smoking, these include those living in poverty and those exposed to it during their childhood.
Air pollution caused from wood stoves, vehicle exhaust, power plants and other sources contain small particles that also contribute to lung cancer.
Non smokers who had undergone radiation treatment to their chest for another type of cancer stand a high risk of lung cancer even without have smoked ever in their life.
Genetic mutation is also among the factors that lead to lung cancer in non-smokers. Researchers are also marking this as a reason of lung cancer running into families.