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A global study published in Nature reveals a strong link between air pollution and lung cancer-causing DNA mutations in never-smokers. Researchers analyzed 871 lung tumors from never-smokers across the globe, finding a correlation between higher pollution levels and increased cancer-driving mutations, particularly in the TP53 gene. This explains the rising number of lung cancer cases in non-smokers, a concerning trend highlighted by scientists. The study also identified a link between certain Chinese herbal medicines and mutations in never-smokers.

Prepared by Olivia Bennett and reviewed by editorial team.