What Makes The Lub Dub Sound May 2026

👂 The pause between lub and dub? That’s your heart filling with blood. The pause after dub? That’s your heart resting before the next beat.

🔊 → Your mitral & tricuspid valves close right after the heart squeezes blood to the lungs and body. This stops blood from flowing backward into the upper chambers. what makes the lub dub sound

Tag someone who needs to know their heart’s secret language! 👇🫀 👂 The pause between lub and dub

#HeartHealth #LubDub #CardiologyExplained #ScienceFacts #Anatomy what makes the lub dub sound

It’s not the heart muscle contracting — it’s your !