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 ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Heart rate zones are a ...

Fans have concerns after Ray J’s recent Valentine’s Day performance in Shreveport, Louisiana weeks after he shared his grim health update. In a video shared to social media, Ray J, who’s real name is ...

Just when you thought Ray J’s life wasn’t chaotic enough, this happens. The “One Wish” crooner, 45, says that his heart monitor has been stolen. Now he’s urging the thief to return the medical device, ...

Ready to ditch the “just tracking steps” vibe? Modern running watches do much more than measure run distance and heart rate: They can help you dial in your training, map out epic runs, and even ...

I’m PCMag’s senior writer covering smart home and wearable devices. I’ve been reporting on tech professionally for nearly a decade and have been obsessing about it for much longer than that. Prior to ...

Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative ...