JACC's latest research presented at ESC is reviewed here, with JACC: Associate Editor Theresa McDonagh, Bsc, MB ChB, MD speaking with co-authors and ESC presenters John W. Ostrominski, MD and Muthiah Vaduganathan, MD MPH. Listen in as they discuss two synergistic studies presented at ESC and simultaneously published in JACC. Both papers emphasize that BMI alone underestimates obesity prevalence and risk in heart failure and cardiometabolic patients, advocating for broader adiposity measures like waist circumference and waist-to-height ratio to improve risk stratification and treatment outcomes.