India, Oct. 14 -- If you have been smoking for years, you may wonder whether quitting now can still make a difference or whether the damage is already done. The fear of lung cancer can make this question especially worrying. But how much can giving up cigarettes reduce your risk, and does a history of smoking mean you need to take extra precautions even after quitting?ALSO READ: Smoking and drinking may age your brain faster: Neurologist explains how

Dr Jitesh Rajpurohit, thoracic surgical oncologist at SSO Cancer Hospitals, revealed that quitting cannot completely eradicate the past exposure, but it can definitely reduce the risk of lung cancer over time.

He shared a common doubt most smokers have: "Many smokers ask me the same questio...