2 doctors weighed in:

What reasons can you think of to explain that cooler temp decreases heart rate?

2 doctors weighed in
Dr. Dan Fisher
Internal Medicine
1 doctor agrees

In brief: Decreased metabolism

Colder temps decrease hr through a variety of mechanisms.
#1 decreased metabolism in the skin and extremities. #2 peripheral vasoconstriction reduces circulatory demand. There may be a central effect as well although I am not sure.

In brief: Decreased metabolism

Colder temps decrease hr through a variety of mechanisms.
#1 decreased metabolism in the skin and extremities. #2 peripheral vasoconstriction reduces circulatory demand. There may be a central effect as well although I am not sure.
Dr. Dan Fisher
Dr. Dan Fisher
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