Pulse oximeters use light to measure how much oxygen is in a person’s blood. For most people, a normal pulse oximeter reading is between 95% and 100%, researchers said in background notes. Readings ...

People of normal weight may also be at risk of diabetes and similar diseases. A study from the University of Gothenburg ...

For decades, BMI (body mass index) has been the go-to number doctors use to decide whether someone is underweight, "normal," overweight or obese. But new global research suggests it's possible to have ...