Tiny fluctuations in the time between each beat of your heart can provide clues about how much stress your body is experiencing.
Articles on Resting heart rate
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Around 36% of people overestimate how much exercise they get daily.
Trying a new exercise routine? Strapping on a new wearable monitor? An expert in human physiology explains the ins and outs of your heart rate and why it’s a valuable number to understand.
Exercising at your maximal heart rate isn’t always effective. Training smarter, not harder, will make you fitter.



