Key Finding: Light Smoking Doubles Heart Disease Risk Even With Just Two Cigarettes Daily

Last updated: 08/06/2026 22:14

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New research shows smoking just 2-5 cigarettes daily increases heart failure risk by 50% and mortality by 60%. Even decades after quitting, cardiovascular risks remain elevated compared to never-smokers. — Photo: Fabiana Zambrano / Pexels

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📊 SHOCKING: Smoking just 2 cigarettes per day increases your heart failure risk by 50%. The biggest risk jump happens between 0 and 5 cigarettes daily – there's no "safe" threshold.

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GMJ Brief · Key Finding

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