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.

If someone’s blood oxygen level falls below 60 mm Hg, there may not be enough oxygen reaching the body’s vital organs. This can lead to symptoms such as shortness of breath and dizziness. This article ...

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 ...

Oxygen is absorbed by a protein in your blood called hemoglobin. When you breathe, your lungs load up blood cells with oxygen, then the pumping of your heart circulates the oxygen-rich blood through ...

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 ...

When Fitbit launched the Charge 4 fitness band, one of the features we found the most interesting was its ability to estimate users' blood oxygen saturation levels through its SpO2 monitor. Users ...

With emergency rooms overflowing at hospitals across California, many people are trying to manage their COVID-19 infections at home with a device that can be found in most pharmacies. The device, ...