What you can do: If your home is in a high-risk area, consider testing for radon and improving airflow. It’s a simple step that could protect your life.
3. Your Genes Might Be Working Against You

Certain inherited genetic changes—especially in genes like EGFR, KRAS, and ALK—can trigger abnormal cell behavior, completely unrelated to smoking. Studies have shown these mutations are more common in Asian women who never smoked.
What you can do: If there’s a history of lung cancer in your family, speak to your doctor about genetic testing and regular screenings. Early awareness is key.
4. Everyday Habits That Add Up
Your daily lifestyle choices matter more than you might think. Diets low in fruits and vegetables, lack of physical activity, and excess weight can all create inflammation in the body, making it easier for abnormal cells to take hold.
What you can do: Aim for a balanced, antioxidant-rich diet, and get moving—even 30 minutes of brisk walking a day can strengthen your immune system and lower your risk.
5. Rethinking Lung Cancer Screening for Everyone
Right now, low-dose chest CT scans are mostly reserved for people with a strong history of smoking. But as lung cancer patterns evolve, it’s becoming clear that we need to broaden screening criteria—because not all high-risk individuals are smokers.
What you can do: Stay informed. If you’re exposed to any of the risks above—or have a family history—don’t wait. Ask your doctor whether screening makes sense for you.