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 ...

A low oxygen environment- similar to that at Mount Everest Base camp- has neuroprotective effects and restores movement in mouse models of Parkinson’s disease. The corresponding study was published in ...

When lungs fail to maintain vital oxygen and carbon dioxide levels, respiratory failure occurs, posing a serious threat. This ...

Medically reviewed by Lauren Schlanger, MD Key Takeaways Low blood pressure may cause no symptoms, but the presence of symptoms necessitates medical attention.Possible symptoms can include dizziness, ...

Elizabeth Cooney is a cardiovascular disease reporter at STAT, covering heart, stroke, and metabolic conditions. You can reach Liz on Signal at LizC.22. Oxygen is the breath of life, right? Because it ...

Heart attacks are medical emergencies that often strike in the early morning due to blood pressure and clotting changes.

Researchers from the Broad Institute and Mass General Brigham have shown that a low-oxygen environment — similar to the thin air found at Mount Everest base camp — can protect the brain and restore ...

Respiratory syncytial virus (RSV) is an infection that affects your lungs, nose, throat, and breathing passages. You get it when infected droplets enter your nose, eyes, or mouth. This might happen ...