Apr 30, 2024 · It can cause lung cancer in both people who smoke and in people exposed to secondhand smoke. But lung cancer also happens in people who never smoked or been exposed to …

Smoking tobacco is by far the leading cause of lung cancer. About 85% of lung cancer deaths in 2025 are expected to be caused by smoking, and many others will be caused by exposure to secondhand …

Sep 25, 2024 · Anyone can get lung cancer. Lung cancer happens when cells in the lung mutate or change. Various factors can cause this mutation (a permanent change in the DNA sequence of a …

May 14, 2025 · It’s more than just smoking. Find out some of the main causes of lung cancer and what puts you at risk for it.

Apr 10, 2025 · Certain substances — like tobacco, radon, and asbestos — are known to cause cancer. Trying to reduce your exposure to these may lower your risk of developing lung cancer.

Feb 13, 2025 · For Everyone Lung Cancer Risk Factors Key points Cigarette smoking is the number one risk factor for lung cancer. Radon is another important cause of lung cancer in the United States.

While smoking, radon, air pollution, as well as occupational exposure to asbestos, diesel fumes, arsenic, beryllium, cadmium, chromium, nickel, and silica are well-established risk factors, many lung cancer …

Nov 15, 2025 · We asked an expert to break down the top causes of lung cancer, when to get screened and the everyday actions you can take to lower your risk for the disease.

Oct 2, 2025 · Smoking is the main cause of lung cancer, and avoiding it can lower your risk. Secondhand smoke exposure can lead to lung cancer if you do not smoke or have never smoked. …

Nov 15, 2021 · In a nutshell, lung cancer begins when the DNA in a single cell or cells in your lungs mutates and causes cells to begin growing abnormally. As those cells multiply, that DNA glitch …