Which statement is true regarding the effects of cigarette smoking on health?

Cigarette smoking is well-documented to significantly increase the risk of lung cancer. The harmful chemicals found in tobacco smoke damage the cells in the lungs and can lead to mutations that contribute to the development of cancerous growths. Numerous studies have established a clear connection between smoking and various forms of lung cancer, underscoring that the risk is markedly higher among smokers compared to non-smokers. This increased risk is one of the most prominent health concerns associated with tobacco use, making the statement regarding its relation to lung cancer accurate.

In contrast, the other statements are factually incorrect or misleading; smoking is associated with a higher risk of heart disease, respiratory issues, and negatively impacts oral health, instead of reducing these risks.