is 10 cigarettes a day a heavy smoker Have you ever wondered what smoking actually does to your lungs? healthy lung, like those from non-smoker, pink, spongy, and full of air sacs that let oxygen pass into Pack-years is a way to

Pack years is a way to measure a smoker's exposure to tobacco. Higher exposure means higher risk for lung cancer. beaumont.org lung Pack Years of Smoking and Lung Cancer Risk A pollution expert says spending an entire day exposed to New York City's wildfire smoke is roughly equivalent to smoking 10 cigarettes in terms of fine particle pollution. While this comparison refers No Safe Level of Smoking NCI

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