Smoking Cessation: The Most Important Step

Why Quitting Smoking Matters

Smoking is the single most damaging thing you can do to your lungs. Tobacco smoke contains over 7,000 chemicals, many of which are toxic and at least 70 of which are known carcinogens. Quitting smoking at any age provides immediate and long-term health benefits.

What Happens When You Quit

Within 20 minutes: Your heart rate and blood pressure begin to drop. Within 12 hours: Carbon monoxide levels in the blood return to normal. Within 2–12 weeks: Circulation improves and lung function begins to increase. Within 1–9 months: Coughing and shortness of breath decrease. Within 1 year: The risk of coronary heart disease is about half that of a current smoker. Within 10 years: The risk of dying from lung cancer is about half that of a current smoker.

Strategies for Quitting

Effective approaches include nicotine replacement therapy (patches, gum, lozenges), prescription medications (such as varenicline or bupropion), behavioural counselling, quitline telephone services, and support groups. Many people require multiple attempts before successfully quitting — each attempt builds toward success. Speak with your healthcare provider about the best approach for you.