In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Tracking your heart rate with a heart rate monitor (HRM) during your runs is one of the most powerful ways to optimize your training, whether you're a dedicated marathoner, power triathlete, or just ...

Maeve O’Neil, a 19-year-old freshman at George Washington University, knew she was sick — but had no idea just how dire it ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the top heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...

DEAR DR. ROACH: I wear a smart watch, and a few times now, it has alerted me that my heart rate is below 45 bpm. This has only occurred when I’m in my recliner, relaxing and starting to nod off. I am ...

R&B singer and reality star Ray J claims a Valentine's Day performance took a frightening turn when a fan allegedly ripped a medical heart monitor straight off his chest mid-show. The 45-year-old - ...

Sherri Gordon, CLC is a certified professional life coach, author, and journalist covering health and wellness, social issues, parenting, and mental health. She also has a certificate of completion ...

Kristi is a registered nurse with over 15 years of experience caring for both adult and pediatric patients at the beside. She worked as a Pediatric Intensive Care Unit RN for the first 4 years of her ...

OpenMetabolics uses machine learning and a smartphone worn in a pocket to estimate energy expenditure. SEAS researchers have developed OpenMetabolics, an open-source, smartphone-based activity monitor ...

Real-world testing and refinements Cho and colleagues recruited 30 participants of varying ages, sizes, and fitness levels to validate the lab's smartphone-based model against other, more common ...