A member asked:

What could cause a high resting heart rate like 100 to 110 while resting?

A doctor has provided 1 answer
Dr. Erin Robertson answered

Specializes in General Practice

A few possibilities: Dehydration &/or meds &/or obesity. If you haven't got one, you need a12-lead ECG to determine what is going on. There is a nerve-based pathway in the heart that looks like an upside-down tree. The pacer is the sinus node. It shoots electricity to the AV node where the left and right bundle branches originate. Then the pathways branch over & over. "Ectopic"/extra sites misbehave & cause this too.

Answered 11/24/2014

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