smoking cessation

Smoking cessation simply means stopping smoking and staying stopped. If smoking is a slow-burning source of harm to the lungs, cessation is turning that source off — and unlike most medical treatments, it works at any age and costs nothing in side effects to the lungs. It is the single most effective thing a person can do to protect their lungs and extend life.

Nicotine dependence has two intertwined parts: a physical craving and an ingrained behavioural habit, so most quit attempts benefit from support on both fronts. Evidence-based aids include nicotine replacement therapy (patches, gum, lozenges), prescription medications such as varenicline or bupropion, and behavioural counselling. Combining medication with counselling roughly doubles success rates compared with willpower alone, and several attempts before lasting success are entirely normal.

The benefits begin within hours: carbon monoxide levels fall, and over months the cilia recover and cough and breathlessness ease. Over years, the accelerated decline in lung function slows toward that of a never-smoker, and the risk of lung cancer, heart attack and stroke steadily falls. In established COPD, quitting cannot fully reverse damage but is the only intervention proven to slow the disease's progression.