Here's what happened when we tested the Garmin Cirqa against a chest strap for accuracy.

Breathing does become more efficient as runners get more aerobically fit (you’ll have a lower breathing rate for the same ...

Did you know there’s a number that might let you know how stressed you are, whether you have a cold coming on and how to get into the zone if you’re about to present at a big meeting? You can find ...

Your normal BPM can vary, but certain symptoms mean it’s time to get help.

Apple, Garmin, Samsung, Google or Amazfit? I put these watches through the paces to see where they land on step, distance and heart rate accuracy. I wasn’t aiming to run a marathon when I started this ...