Recent studies have significantly advanced our understanding of the genetic and environmental factors contributing to coronary artery disease (CAD). Snaebjarnarson et al. explored the complex interplay of sequence variants affecting lipid levels, revealing both additive and non-additive effects on CAD risk. Their findings suggest that gene-environment interactions may play a crucial role in lipid metabolism, highlighting the importance of epistasis in understanding CAD (ref: Snaebjarnarson doi.org/10.1016/j.cell.2023.08.012/). In a multi-ancestry genome-wide study, Kavousi et al. identified novel effector genes and pathways associated with coronary artery calcification (CAC), which serves as a predictor for future CAD. This study underscores the potential for genetic insights to inform therapeutic strategies aimed at preventing CAD (ref: Kavousi doi.org/10.1038/s41588-023-01518-4/). Furthermore, Hou et al. conducted a comprehensive epigenomic profiling of GTEx samples, linking noncoding genetic variants to regulatory activities that may influence CAD risk, thus providing a deeper understanding of the molecular mechanisms underlying CAD (ref: Hou doi.org/10.1038/s41588-023-01509-5/). Zhang et al. examined the bidirectional relationship between cardiovascular disease and lung cancer, emphasizing the need for integrated approaches in managing patients with these comorbidities (ref: Zhang doi.org/10.1016/j.jtho.2023.09.004/). Additionally, Devesa et al. highlighted the association between cardiac insulin resistance and early subclinical atherosclerosis, suggesting that metabolic syndrome traits may exacerbate CAD risk (ref: Devesa doi.org/10.2337/dc23-0871/).