how many cigarettes a day is considered heavy smoker Characteristics of light/moderate (less than 20 per day) and Smoking 10 cigarettes a day

Smoking 10 cigarettes a day is considered moderate, not heavy. While it's less than a pack a day, it still poses serious health risks. Even small amounts of tobacco can damage the The decline of smoking The Spokesman Review Light smokers may not escape nicotine addiction, study reveals Penn State University Smoking One Pack of Cigarettes Per Day Causes 150 Extra Mutations in Lung Cells Respiratory Therapy Current Cigarette Smoking Among Adults United States, 2016 MMWR

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