He explained that he had been a smoker for more than 50 years but did not classify himself as a ‘heavy smoker’. He said : “I ...

A new study from South Korea has revealed that heavy smokers may take up to 25 years after quitting for their cardiovascular ...

In no sense would it overthrow the known statistical association between heavy cigarette smoking and cancer mortality, but it might serve to moderate the role of smoking as a lung-cancer risk.