Lung Cancer: More Than Just Smoking
Risk Factors Beyond Smoking
Every year on July 27, Head and Neck Cancer Day is observed around the world. It helps to raise awareness about the early detection of the tumors that affect the upper aerodigestive tract, but what exactly are head and neck cancers? They are not a single disease, but a broad category of malignancies, which represent about 4.5% of all cancer diagnoses worldwide. Although head and neck cancer poses a complex threat to vital bodily functions—like speaking and eating—, understanding its origins, primary risk factors, and modern treatments remains the most powerful tool to fight the disease.
More Than Just Smoking
According to Cleveland Clinic (2026), approximately 80% of lung cancer deaths are related to smoking; however, secondhand smoke, environmental pollution, and a family history of lung cancer are also risk factors.
Among these, secondhand smoke stands out. The Environmental Protection Agency defines it as “a mixture of the smoke given off by tobacco products, such as cigarettes, cigars, or pipes, and the smoke exhaled by a smoker” (2026).
This mixture contains more than 7,000 substances that other people can passively inhale, which can cause damage to the cardiovascular and respiratory systems. Moreover, long-term exposure to toxins in the air, due to pollution or work environment, such as coal, asbestos, uranium, and diesel exhaust, can also harm an individual’s respiratory health, representing also a risk factor for developing lung cancer.
How to Reduce Your Risk
Although there is no way to completely guarantee the prevention of lung cancer, there are measures that can reduce the risk of developing it. According to Cleveland Clinic (2026), not smoking or quitting smoking is one of the main ways to reduce this risk, but avoiding secondhand smoke and getting screened also help protect lung health. Likewise, the World Health Organization (2026) emphasizes the importance of reducing exposure to hazardous substances in the workplace and to air pollution. Therefore, remaining informed about the risks to which an individual is exposed represents a fundamental strategy to protect one’s lung health.
Why Awareness Matters
Finally, knowing the factors that increase the risk of developing lung cancer helps people understand that this disease can affect even those who have never smoked. Protecting lung health does not depend solely on avoiding tobacco, but also on being informed and reducing exposure to secondhand smoke, pollution, and other harmful substances.
References
Cleveland Clinic. (April 22, 2026). Lung Cancer. https://my.clevelandclinic.org/health/diseases/4375-lung-cancer
Environmental Protection Agency (EPA). (January 14, 2026). Humo de tabaco de segunda mano y la calidad del aire interior.
World Health Organization (WHO). (April 16, 2026). Lung Cancer. https://www.who.int/news-room/fact-sheets/detail/lung-cancer