Normal: It is called respiratory variation. More likely if one is HEALTHY and there is less of it as we get older with less cardiac reserve. It occurs because breathing in pulls more blood in and the heart beats slightly faster to handle the little bit more blood that comes in.
Answered 10/15/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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