What Makes The Lub Dub Sound Portable May 2026

Ever wondered what makes that classic ❤️ lub-dub ❤️ sound when you listen to a heartbeat?

If you hear a whoosh or swish instead of a clean lub-dub, that’s called a heart murmur — often harmless, but worth getting checked out. what makes the lub dub sound

🔊 → 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. Ever wondered what makes that classic ❤️ lub-dub

Tag someone who needs to know their heart’s secret language! 👇🫀 what makes the lub dub sound

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