heartbeat

Mixing Is the Heartbeat of Deep Lakes. At Crater Lake, It's Slowing Down

Injectable pacemaker regulates heartbeat for 5 days then dissolves

I'd swap my Garmin Forerunner 965 for this much cheaper smartwatch in a heartbeat — if it weren't for one thing

AI laser that reads heartbeat through the throat could replace stethoscopes

I'd buy this PSVR 2 Black Friday bundle in a heartbeat (if I didn't already have it)