A member asked:

What causes an increase in resting heart rate by about 25 bpm? not dehydrated or anxious. went from 60 to 85. athlete

A doctor has provided 1 answer

Heart rate: An elevation of resting heart rate can occur from fever, overactive thyroid, caffeine,alcohol,nicotine,anxiety and certain stimulant medications or substances.

Answered 11/19/2016

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