This umbrella review demonstrates convincing and suggestive evidence linking secondhand smoke exposure to adverse pregnancy outcomes, lung cancer, cardiovascular disease, and depressive symptoms across the lifespan.

This systematic review indicates that secondhand e-cigarette exposure is not harmless and is associated with various respiratory, immunological, and self-reported health symptoms.

This review highlights the significant health impacts of secondhand smoke pollution on children and adolescents, noting correlations with asthma severity and other adverse health outcomes.

This study demonstrates that short-term thirdhand smoke exposure triggers a prothrombotic phenotype and poses significant cardiovascular risks.