Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas (ABG) test results.

In iOS 26.4, Apple added an Average Bedtime metric to the Sleep section of the Health app, letting users better monitor how ...

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.

Monitoring your blood oxygen levels may not seem as exciting as step counting or be as obvious in its benefits as something like sleep tracking, but it's still a useful option for managing your health ...

Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection ...

Please provide your email address to receive an email when new articles are posted on . Pulse oximetry readings in Black pediatric patients overestimated their blood oxygen levels compared with white ...

Apple has just announced a software update that will enable the missing blood oxygen level measurement capability on the Apple Watch. The update will enable the biosensing feature on the Watch Series ...

In a 2023 paper on hypoxia and glucose metabolism, our lab showed how organisms rewire their metabolism to adapt to low oxygen levels—such as those found at high altitudes. One of the most striking ...