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 Hampshire emergency room doctor says simple technology could save lives in the fight against the coronavirus. Dr. Richard Levitan, who has three decades of experience, volunteered last month at ...

Vital signs, those fluorescent green numbers that beep, ding, and dash across black screens on the monitors in hospital rooms, have become a new source of angst during the coronavirus pandemic. One of ...

Mercey Livingston is a health and wellness writer and certified Integrative Nutrition Health Coach. She's written about fitness and wellness for Well+Good, Women's Health, Business Insider, and ...

First, pause and take a deep breath. When we breathe in, our lungs fill with oxygen, which is distributed to our red blood cells for transportation throughout our bodies. Our bodies need a lot of ...

Oxygen levels in the Earth's atmosphere are likely to have 'fluctuated wildly' one billion years ago, creating conditions that could have accelerated?the development of early animal life, according to ...

Some coronavirus patients are unknowingly losing oxygen in what's being called silent hypoxia. By the time they realize they're having trouble taking a deep breath and reach out for help, they are ...