Your smartwatch atrial fibrillation alert deserves a doctor's visit. New research shows people with AF detected during screening face three times the heart failure risk, with most cases appearing ...

A story claims a revolutionary skunk works built a quantum sensor that was used to locate a missing airman by reading his pulse from 40 miles away. But physicists say the laws of biomagnetism make ...

As a certified personal trainer, I tested 16 wearables while training, running and swimming. Here are the best fitness ...