A new ultrasound-based imaging tech has been developed to map the organ blood flow in four dimensions (3D + time) — a level ...

A sudden restriction of blood flow to the brain. That's how scientists have traditionally explained why people faint. But several mysteries remain: What causes someone's blood flow to spontaneously ...

A few athletes have been wearing bands around their arms and legs while they exercise. Experts discuss what these bands do for the Olympians. A few U.S. Olympic athletes have been spotted exercising ...

Restricting your blood flow sounds like a dangerous thing to do, but it’s exactly what some Olympians, athletes, and surgery and physical therapy patients have done to strengthen their muscles and ...