Dear Dr. Roach: I am a 64-year-old male who is a lifelong endurance athlete. For the past 15 years, my primary activities are cycling and swimming. I work out around 10 hours a week now, so it’s ...

Having high blood pressure but a low pulse rate can be a sign of a more serious underlying health condition, such as a heart problem. Your blood pressure is the amount of pressure your blood is ...

By Dr. Liji Thomas, MD A major UK study shows that commonly used home pulse oximeters can overestimate oxygen levels in people with darker skin, increasing the risk of undetected hypoxemia and raising ...