MedStar Health Blog

Atrial fibrillation, or AFib, is the most common type of arrhythmia, affecting more than 5 million people in the U.S. While it’s mostly common in the elderly, AFib can affect people of all ages. ...

When it comes to activities that affect the heart, there’s the good (a healthy lifestyle), the bad (unhealthy risk factors), and the ugly (hidden influences). Excessive stress is often found among t...

Nearly one in eight women in the U.S. will develop breast cancer in their lifetime, and it’s the second leading cause of cancer death in women, next to lung cancer. Yet many women ask themselves,...

If you’ve ever received an electrical shock, even a minor one, you know what a jolt to your system it can be. Even at low intensity, direct exposure to electrical energy can cause injury. At ...

Performance athletics—in fact, any form of intense exercise—increases the body’s need for oxygen. Elite and endurance athletes, in particular, experience unique adaptations; for ex...

Humans are warm-blooded—we maintain a steady internal body temperature, regardless of surrounding conditions. Under normal circumstances, that temperature remains at...