Tobacco smoke irritates and inflames the airways, damages the tiny hair-like structures that clear mucus, and gradually destroys the elastic tissue of the lungs.
Effects over time
Persistent cough, increased sputum, recurrent chest infections, reduced exercise capacity and, in many people, the development of COPD. Smoking is also a major risk factor for lung cancer.
What improves after quitting
Cough and sputum often reduce within weeks to months, chest infections become less frequent, and the accelerated decline in lung function slows down. The benefits begin at any age.
Getting support
Quitting is easier with a plan. Discuss triggers, withdrawal symptoms and available support options with your doctor.
Medical disclaimer: This website is for educational and informational purposes only and does not replace professional medical consultation.