Researchers have found evidence that low oxygen levels in tumors could actually enhance some of the body's immune responses against cancer, in contrast with the general paradigm that hypoxia ...

People with obstructive sleep apnea (OSA) typically have low oxygen levels when they sleep because of gaps in their breathing. Blood oxygen during sleep is considered low if levels are below 95%.

Per the American Heart Association, this occurs due to chronic low blood oxygen levels that prevent oxygenated blood from reaching the body’s extremities, triggering new blood vessels to form ...

The seals’ ability to detect the amount of oxygen in their blood may help them make diving decisions and avoid drowning.

Pulse oximeters are used to check blood oxygen saturation levels and heart rate. Research suggests that these devices may be less accurate for people with darker skin pigmentation.

The company said it would issue a software update to restart the technology, which was caught up in a patent dispute.