PARIS — Oxygen therapy is used too often in patients with respiratory difficulties, says one expert, and should only be given when oxygen saturation levels (SpO2) drop below 93%, as per the current ...

Put simply, SpO2 is a measure of blood oxygen saturation. The more oxygen you have in your blood, the higher your SpO2 levels are going to be. Seeing as our bodies need oxygen to survive, we can ...

When you have shortness of breath, you can't catch your breath or get enough air in your lungs. Your doctor might call it dyspnea. It can be a warning sign of a health problem that needs treatment ...

is a senior reporter and author of the Optimizer newsletter. She has more than 13 years of experience reporting on wearables, health tech, and more. Before coming to The Verge, she worked for Gizmodo ...