A member asked:

Why does my heart rate slow when i stand up after sleeing hard?

A doctor has provided 1 answer

Can slow or increase: Standing up quickly causes blood to pool in the legs and causes the blood pressure to drop transiently. How transient depends on how compensated a person is. If dehydrated, elderly, anemic, or diabetic, then the blood pressure can remain depressed and will actually lead to a fast heart rate. The only time that the hr would slow would be if the vagus nerve got activated - vasovagal response.

Answered 3/30/2016

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