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

Wearables measure several aspects of health, and heart rate variability might be one of those. It may be surprising when your device informs you that your heart rate variability is high or low, but ...

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

If you want the most accurate heart rate readings, you'll need to strap on a chest strap.

Electromagnetic fields generated by hospital incubators influence the heart rates of newborns, say Italian researchers, who call for more research on the impact of such fields on premature babies. Dr ...

AirPods Pro 3 heart-rate testing looks promising against Apple Watch and chest-strap benchmarks, but the results apply best to healthy users in controlled workouts. AirPods Pro 3 may be closing the ...