Good vascular function is important because it means a person’s blood vessels are able to expand and contract so their blood can flow efficiently, delivering oxygen and nutrients to the body and ...

Drinking alcohol on a flight may lower blood oxygen levels and increase heart rate, a new study shows. Experts explain side effects of drinking during a flight.

The blood oxygen level measurement is coming back to the Apple Watch Series 9, 10, and the Ultra 2, over a year after Apple ...

The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...

A new sensor could soon allow hospital patients' blood oxygen levels to be checked via their breath. The technology is claimed to be more reliable and less painful than existing traditional methods.

One of the most helpful features on Apple Watches, blood oxygen tracking, remains MIA on watches sold after January. Here's why the situation won't change soon.

Land mammals, including humans, don't directly perceive their blood oxygen levels. Their breathing is triggered by CO₂ accumulation, an effective mechanism in air but risky when diving.

Most mammals can’t directly detect oxygen levels in the blood supplying their tissues. Instead, they rely on the rising level of CO 2 in their blood to signal that they might need to take a breath.

WASHINGTON — Makers of medical devices that quickly measure oxygen levels in the blood would have to gather extra data to show that their products work for patients of color, under a new federal ...

Gray seals (one shown) are aware of their blood oxygen levels and make diving decisions accordingly, a new study suggests. Sea Mammal Research Unit, University of St. Andrews By McKenzie Prillaman ...