There are some steps you can take to lower your risk of thoracic cancer and stay healthy: quitting smoking and reducing your exposure to certain environmental factors.

Lung cancer: Smoking is the leading cause of lung cancer. If you smoke, it is best to quit now. Other risk factors include exposure to secondhand smoke, radon and asbestos, and family history.

Esophageal cancer: Smoking, alcohol use and gastric reflux have been associated with forms of esophageal cancer.

Mesothelioma: Working with asbestos is the major risk factor for mesothelioma.