A member asked:

After running (sprinting)at 85-95% of my hrmax i can hear my heartbeat through my mouth when i do inhale deeply. is it normal? i'm rather healthy guy.

5 doctors weighed in across 2 answers

Strong beating: The heart would beat forcefully and fast with this degree of exertion and it wouldn't be unusual to feel your heart beating. Hearing it through your mouth is unusual but i doubt it's serious if the sensation disappears soon after resting.

Answered 1/10/2021

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Dr. Jeffrey Bassman answered

Specializes in Dentistry

Doctor: I am a runner and I have never experienced what you are describing. I would be cautious and consult a doctor asap to have this checked before doing any more sprinting.

Answered 1/4/2014

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