Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

But it turns out more subtle color changes occur at rest as the heart pumps blood around the body. The ebb and flow of blood through capillary vessels changes the amount of light ...

A team of medical researchers and engineers at Google Research has developed a way to use the front-facing camera on a ...

They use electrodes against your skin to monitor the electrical activity, whereas most other heart rate monitors are 'optical', meaning they send a ray of light into your skin and measure the ...

A new study suggests your smartwatch could provide a powerful insight into your heart health. Researchers developed a metric ...

A new radar device, developed by Dr. George Shaker and his research team at the University of Waterloo, could help detect ...

Aria Gen 2, which arrives roughly five years after the first-generation Aria device, adds new capabilities ... Aria Gen 2 has a PPG sensor for measuring heart rate and a contact microphone to ...

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 ...

With insights from 3 expert coaches, we explain what Heart Rate Variability means for endurance athletes and how to use HRV ...

Fitness trackers detect heart rate by measuring changes in blood volume ... Sogaard said. For example, a device that is too loose or too tight will not allow the optical sensors to get a good ...