MedTech Matrix on Instagram: "Before Your Heart Ever Beat Once, Thousands of Cells Made a Silent Decision That Still Controls You Today.” Before a heart ever beats, life organizes itself in complete silence. Scientists have captured the exact moment when cardiac cells begin acting as one — seconds before the very first heartbeat exists. No heart chamber. No pumping. No pulse. Instead, thousands of individual cells synchronize their electrical signals, creating a wave of energy that triggers the