How a small device called a pulse oximeter measures blood oxygen levels

A pulse oximeter is a device that clips on your finger, toe, or earlobe to measure blood oxygen saturation. Here's how it works and how to read it.

This Heart Health Metric Is Everywhere Now. Here's How to Use it to Reverse Aging.

This Heart Health Metric Is Everywhere Now. Here's How to Use it to Reverse Aging.
CNN

FDA issues draft guidance to improve accuracy of pulse oximeters for people with darker skin tones

Years of research have showed that pulse oximeters yield less accurate readings for people with darker skin tones, and now the US Food and Drug Administration is proposing guidance to help make these ...
Live Science on MSN

Scientists invent 'Pulse-Fi' prototype — a Wi-Fi heart rate monitor that's cheaper to set up than the best wearable devices

Engineers are in the early stages of harnessing Wi-Fi as a way to monitor heart rates, but don't expect to use your home ...