In the November 19, 2024, issue of JACC, Dr. Valentin Fuster discusses four groundbreaking studies that could shape the future of cardiovascular care. Topics include the impact of atrial fibrillation screening on stroke prevention, risk factors in Brugada syndrome, new methods to reduce heart block after congenital heart disease surgery, and genetic insights into arrhythmogenic triggers of atrial fibrillation, alongside a review of a decade of leadless cardiac pacing technology.