Smoking is well-known to cause cancer, but it can also lower survival, impact treatment, and increase side effects if it continues post-diagnosis.
Common causes of lung cancer include smoking, radon, pollution, chemical exposure, and more. Genetics and lifestyle factors also affect your risk.
Evidence suggests that cigarette smoking and even just exposure to secondhand smoke in pregnancy can increase the risk of miscarriage or stillbirth.
There are causes and risk factors for non-small cell lung cancer beyond smoking, and genetics, radon, and even infections may play a role. Learn more.
Nicotine is a highly addictive drug, and many new mothers hope to return to smoking while breastfeeding. But is smoking safe for your baby?
Learn how to determine the number of pack years of smoking—a factor linked to a risk of both heart disease and lung cancer.
About 1 in 15 people get lung cancer overall, but risk varies by sex, smoking status, and smoking history. See what data can tell you about your risk.
Lung disease from smoking includes most cases of lung cancer, but smokers' lungs also often have emphysema and chronic bronchitis, both forms of COPD.
The tar in cigarettes comes from tobacco. This toxic residue is full of cancer-causing chemicals and coats every surface it touches, harming smokers and non-smokers.
It is best to refrain from smoking marijuana while pregnant. Learn more about why you cannot smoke during pregnancy.