HEALTH & LIFESTYLECan Non-Smokers Develop Lung Cancer Even If They Do Not Smoke? Expert Sheds Light

Recently the Big Bang Theory actor Kate Micucci, 43, announced on TikTok that she had been diagnosed with lung cancer despite never smoking cigarettes. Why are younger non-smokers getting lung cancer? Lung cancer can indeed affect individuals who have never smoked.

According to Mayo Clinic, lung cancer is a type of cancer that begins in the lungs. Your lungs are two spongy organs in your chest that take in oxygen when you inhale and release carbon dioxide when you exhale. People who smoke have the greatest risk of lung cancer, though lung cancer can also occur in people who have never smoked. The risk of lung cancer increases with the length of time and number of cigarettes you’ve smoked. If you quit smoking, even after smoking for many years, you can significantly reduce your chances of developing lung cancer. Various risk factors beyond smoking can contribute to the development of lung cancer.

In a conversation with Jagran English, Dr. Sreenivass B J, Medical Oncologist, HCG Cancer Hospital, Bangalore explained various risk factors beyond smoking that can contribute to the development of lung cancer.

Secondhand smoke exposure occurs when people breathe in smoke breathed out by people who smoke or from burning tobacco products. Exposure to secondhand smoke increases the risk of developing lung cancer. Even if someone doesn’t smoke themselves, exposure to smoke can still be harmful.

2. Radon Exposure

Radon, a colourless, odourless gas found in rocks and soil, can seep into homes and buildings. Prolonged exposure to high levels of radon can elevate the risk of lung cancer. Radon remains a major cause of lung cancer. It is estimated that radon causes between 3% to 14% of all lung cancers in a country.

3. Environmental Factors

Exposure to certain carcinogens in the environment such as asbestos, arsenic, diesel exhaust, and some chemicals used in workplaces like uranium, coke, and certain metals can increase the risk. Exposure to certain industrial substances and fumes also increases a person’s risk of developing lung cancer.

4. Genetics

Some individuals might have a genetic predisposition to lung cancer, making them more susceptible even without the typical risk factors. 60% of individuals today with lung adenocarcinomas have certain gene mutations.

5. Air Pollution

The second leading cause of lung cancer is air pollution. Long-term exposure to polluted air, especially in urban areas with high levels of pollutants, can contribute to lung cancer risk. Most people still don’t know that particulate pollution is a huge risk factor for lung cancer.

Preventive Measures Suggested by the Expert:

1. Avoiding Tobacco Smoke

Even secondhand smoke can pose risks, so staying away from smoking environments is crucial.

2. Testing for Radon

Homes should be tested for radon levels, and if high, steps should be taken to reduce exposure.

3. Workplace Safety

Protective measures and adhering to safety regulations in workplaces where exposure to carcinogens is possible can reduce risk.

4. Healthy Lifestyle

A balanced diet, regular exercise, and a healthy lifestyle can help reduce the risk of various cancers, including lung cancer.

5. Screening and Early Detection

Regular check-ups and screenings for those at higher risk due to family history or other factors can aid in early detection and better outcomes.

It is important to note that while these factors can contribute to lung cancer, they do not guarantee someone will develop it. However, minimising exposure to these risk factors and leading a healthy lifestyle can significantly reduce the chances of developing lung cancer, even for those who have never smoked. Regular medical check-ups and early detection remain crucial for managing and treating lung cancer effectively. Low-dose CT scan is recommended now for persons with a heavy smoking history.