WiFi signals can measure heart rate - with no wearable device needed, reveals new research. Engineers showed their technique is effective even with the lowest-cost WiFi devices. Heart rate is one of ...

Heart rate variability typically decreases during stressful situations, although the heart rate increases. Managing stress levels can mean a more variable heart rate. Exercise and relaxation ...

Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness watches and smart rings. When you purchase through links on our site, we may earn ...

When the first Apple Watch made its global debut, Apple said it was a product that would enrich people's lives and encourage them to adopt a healthier lifestyle, thanks in part to a heart rate sensor ...

"CARDIO MACHINE" HAS become a catch-all term to describe exercise bikes, treadmills, rowers, and ellipticals. Categorizing an entire section of your commercial gym can be practical, sure—but the ...