What is the link between smoking and lung cancer?

What is the link between smoking and lung cancer?

Smoking is the leading cause of lung cancer, responsible for about 85% of cases. It damages lung tissue and leads to mutations.

How does smoking cause these mutations?

The chemicals in tobacco smoke can alter DNA in lung cells, leading to uncontrolled cell growth and cancer.

Are there other factors that contribute to lung cancer?

Yes, besides smoking, factors like exposure to radon gas, asbestos, and air pollution can also increase lung cancer risk.

Is it possible to reverse the damage caused by smoking?

Quitting smoking can significantly improve lung health over time, but some damage may be irreversible.

What are the symptoms of lung cancer?

Common symptoms include a persistent cough, chest pain, shortness of breath, and coughing up blood.