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It can be difficult to separate fact from fiction about the effects of smoking on your lungs. Find out what's true and what's a myth.
The truth is that a persistent cough is telling you something is wrong.
In reality, one in seven cases of lung cancer are not linked with smoking.
Exposure to second-hand smoke and substances such as asbestos and radon gas will increase the risk.
Lung cancer can affect anyone, and there has been a big increase in the number of women affected.
Most people develop lung cancer in their 60s and 70s, after many years of smoking, but occasionally people get lung cancer at a much younger age, even in their 20s and 30s.
New treatments have increased survival rates. If the cancer is caught early enough, it may be curable.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.