A middle-aged man who smoked fewer than five cigarettes a day for over 20 years was diagnosed with advanced lung cancer and severe COPD. He never considered himself a real smoker, dismissing a persistent cough as a smoker's cough. Doctors say such cases are becoming increasingly common.
The Rising Threat of Light Smoking
Dr. Sachin Kumar, Director of Pulmonology and Critical Care Medicine at Sakra World Hospital in Bengaluru, told TOI Health that cases like this are now seen every two to three months, compared to once every six months a few years ago. Many patients present at advanced stages because early symptoms are ignored.
Light smoking, defined as fewer than five cigarettes per day, significantly increases the risk of lung cancer and chronic obstructive pulmonary disease (COPD). The gradual damage to lungs and blood vessels often goes unnoticed until it is too late.
Warning Signs Not to Ignore
Dr. Kumar emphasized that people should not ignore symptoms such as a persistent cough lasting more than two to three weeks, breathlessness, wheezing, blood in sputum, chest pain, unexplained weight loss, recurrent chest infections, and reduced exercise tolerance. Early diagnosis can greatly improve treatment outcomes and quality of life.
Prevention and Cessation
The most effective way to prevent tobacco-related diseases is complete cessation of tobacco in all forms, including cigarettes, beedis, gutka, pan masala, vaping, and e-cigarettes. Helpful measures include tobacco cessation counselling, nicotine replacement therapy, behavioural therapy, strong family support, avoiding passive smoking, awareness programmes in schools and workplaces, and annual health check-ups for chronic smokers.
There is no safe form of tobacco. Even occasional smoking causes cumulative damage. Quitting at any stage can slow lung function decline, reduce cancer risk, and improve quality of life.
The Secondhand Smoke Problem
Secondhand smoke exposure is a significant concern. A meta-analysis found it increases lung cancer risk by 25 percent. In India, 38.7 percent of adults are exposed at work and 30.2 percent at home. Family members, especially children and the elderly, are at risk even if they never smoke.
Lung cancer among nonsmokers in India is rising by 30 to 40 percent due to secondhand smoke, air pollution, and biomass smoke. The disease is stealing decades of life, and the burden is growing.
World No Tobacco Day serves as a reminder that early action is crucial before irreversible damage occurs. Quitting smoking is the single best step for personal and public health.
