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 ...

Medically reviewed by Steffini Stalos, DO Key Takeaways If your oxygen saturation level drops below 92%, seek medical help right away. A dangerously low oxygen level can make you feel short of breath ...

A recent study explored one possible cause -- hyperoxia or high concentrations of oxygen given to such patients during surgery -- as opposed to doses more similar to air. The study concluded that ...

Your body runs on blood like a car runs on fuel – without enough of it, everything starts breaking down. When blood levels drop too low, your organs begin struggling to get the oxygen and nutrients ...

Medically reviewed by Christopher Lee, MD Key Takeaways Normal hemoglobin levels differ for men and women, with adult males ...

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 ...

Two out of 10 people who receive cardiac surgery are affected by acute kidney injury, prolonging their hospital stay and increasing their risk for chronic kidney disease, cognitive decline and heart ...

Gray seals may possess a secret sense that helps them survive at sea. The marine mammals adjusted their time spent underwater based on the amount of oxygen in the air they breathed before diving, ...