Gone, but never truly forgotten.

This work is not intended to be used in professional environments, and there are no guarantees on its functionalities. Please do not rely on it for medical purposes ...

Ultrahuman Ring Pro starts shipping worldwide today at $479 with lifetime access to all core health features — no subscription required. The titanium ring packs a dual-core ML processor, 15-day ...

Sanja Jelic, MD, is board-certified in sleep medicine, critical care medicine, pulmonary disease, and internal medicine. Sleep apnea can cause low blood oxygen during sleep. Low oxygen levels from ...

Huawei’s blood sugar tracking timeline shows how its watches moved from blood pressure monitoring to diabetes risk alerts, ...

More discreet than a fitness tracker or smartwatch, the top smart rings we've tested can track your activity and sleep from an unobtrusive spot on your finger. I’m PCMag’s senior writer covering smart ...

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 ...

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 ...

Functional near-infrared spectroscopy (fNIRS) is a noninvasive and portable optical brain imaging technique that detects changes in cerebral blood oxygenation related to human brain functions. It uses ...