Lung cancer symptoms: Has your voice sounded like this for three weeks or more? Major sign

One of the gravest risk factors of lung cancer is smoking tobacco, which accounts for around seven out of 10 cases.

According to Cancer Research UK, the risk extends to breathing in other people’s cigarette smoke or even light or occasional smoking.

As an incentive to quit, your risk increases the longer you smoke and the more you smoke, notes the charity.

Some substances increase the risk of lung cancer – these include asbestos, silica, and diesel exhaust, says the health body.


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