A few of the most important insights are heart rate variability (HRV), which describes the difference in time between the ...

Northwestern University researchers have developed the first device that can continuously track a fetus's vital signs while still in the uterus - a feat that previously has not been possible. The soft ...

Walmart has massively marked down a highly-rated pulse oximeter that's designed to monitor your heart rate and blood oxygen levels whether you're at home or playing sports. If you want a better ...

When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...