Which lifestyle choice is linked to an increased risk of developing lung cancer?

Smoking is strongly linked to an increased risk of developing lung cancer due to the harmful substances present in tobacco smoke. When a person smokes, they expose their lungs to a variety of carcinogens and toxins that can lead to the mutation of lung cells. Over time, these mutations can accumulate, leading to the development of cancer. The link between smoking and lung cancer is well-established, with a significant percentage of lung cancer cases attributed to tobacco use.

In contrast, regular exercise, consuming antioxidants, and eating lean proteins are generally associated with positive health outcomes and are not known to increase the risk of lung cancer. Regular exercise can improve lung function and overall health, while antioxidants may help protect cells from damage. A diet high in lean proteins can support overall health and does not contribute to cancer risk.