There is no doubt that smoking can cause lung cancer. "Smoking is by far the biggest preventable cause of cancer. Thanks to years of research, the links between

There is no doubt that smoking can cause lung cancer. "Smoking is by far the biggest preventable cause of cancer. Thanks to years of research, the links between smoking and cancer are now very clear. Smoking accounts for more than 1 in 4 UK cancer deaths, and 3 in 20 cancer cases." https://www.cancerresearchuk.org/about-cancer/causes-of-cancer/smoking-and-cancer/how-smoking-causes-cancer https://www.cancerresearchuk.org/about-cancer/causes-of-canc...