What's a normal resting heart rate?

(The above picture is from

https://shine365.marshfieldclinic.org/heart-care/heart-rate-hows-your-personal-engine-running/ 

https://shine365.marshfieldclinic.org

on 2023-01-08 at 7.29 pm)

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What's a normal resting heart rate?

A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.

https://www.mayoclinic.org/healthy-lifestyle/fitness/expert-answers/heart-rate/faq-20057979#:~:text=A%20normal%20resting%20heart%20rate%20for%20adults%20ranges%20from%2060,to%2040%20beats%20per%20minute.