We tested 50 air purifiers to find the best for removing dust, pollen, pet dander, smoke, and odors, with picks for bedrooms, ...

Wrist pulse oximeters can look similar, making it hard to decide which one to buy. This in-depth guide covers everything you need to know to find your best fit.

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

That’s where pulse oximeters come in. These small devices measure your heart rate and SpO₂. They give you another way to understand how your body responds during exercise and recovery. Also, they may ...

A simple bedside eye test may help predict recovery of consciousness in patients with severe brain injuries, according to new ...

Continuous glucose monitors have become popular among those who need to track their glucose levels because they're painless ...

There has never been a better selection of fitness trackers, but with choice comes confusion. We're here to help you narrow your options and find the best fitness tracker for your needs and budget. We ...

Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the top fitness trackers we've tested. I’m PCMag’s senior writer covering ...

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