A normal resting oxygen saturation level for a healthy person at sea level is usually between 95% and 100%. This means your organs and tissues are receiving enough oxygen to work as they should.

Forbes Health's medically reviewed guide explores normal blood sugar (glucose) levels by age, plus when it might be appropriate to visit a doctor.

Blood oxygen levels measure the amount of oxygen in the blood. Normal oxygen saturation levels vary slightly from person to person, but they generally range between 95% to 100%.

Hemoglobin levels that fall below the normal range can be a sign of certain health conditions such as cancer or anemia. When your hemoglobin is low, your body can’t get enough oxygen to its ...

Maintaining a blood oxygen level of 75–100 mm Hg or 95–100% is vital for a healthy heart, brain, and kidneys. Most people don’t need to monitor their blood oxygen levels regularly.

Use this hCG levels chart to see a range of what’s typical, keeping in mind that normal hCG levels can vary quite a bit.

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.

Normal SpO2 Range By Age. A simple device called pulse oximeter, which is attached to your fingers or earlobes, is used to measure spO2 levels. “It works on the principle of photoplethysmography ...

Every breath we take in contains 21% oxygen, the gas that makes life on Earth possible. Oxygen, in its combined oxide state, ...

Lactic acid is perfectly safe at low levels, but it can cause major problems when it builds up. If your doctor suspects that this is the case, you’ll probably have a lactic acid blood test.

The team reported the mice in the oxygen-restricted environment lived about 50% longer than the mice in normal oxygen levels, with a median lifespan of 23 weeks compared to 15 weeks.