Wearables now flag everything from irregular heartbeats to dips in blood oxygen, but the data is only as useful as a person's ...

Engineers have developed a new way to monitor how tiny lab-grown human heart tissues beat—by effectively "listening" to the ...

One of the flagship additions to the AirPods Pro 3 was a built-in heart-rate sensor, which allows users to track more than 50 workout types. But how accurate is it?

Pulling the dipstick is easy. Reading it correctly is another story. Here's when to check, how to read the markings, and what ...