Verywell Health on MSN
What are heart sounds and how to know if they’re normal
Medically reviewed by Jeffrey S. Lander, MD Key Takeaways S1 and S2 are the normal heart sounds you hear when the heart ...
“Lub-dub…lub-dub…lub-dub…” That’s the sound a healthy heart makes as its valves close after each pump. Your doctor wants to ...
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