What is the #1 preventable cause of death from lung cancer?

Smoking is recognized as the leading preventable cause of death from lung cancer due to the toxic substances found in tobacco smoke. When individuals smoke, they are exposed to numerous carcinogens that can lead to the development of cancer cells in the lungs. The correlation between smoking and lung cancer is well documented; approximately 85% of lung cancer cases are attributable to smoking.

Moreover, smoking not only increases the risk of lung cancer but also other types of cancer and various chronic diseases. Quitting smoking significantly decreases the risk of developing lung cancer, which highlights the preventability aspect. This understanding is crucial for public health initiatives aimed at reducing the incidence of lung cancer and promoting smoking cessation programs. The other options do not have the same direct and significant impact on the risk of lung cancer as smoking does.