![Normal Heart Rate: Range, When It's Dangerous, and More | Preventative health, Normal heart rate, Heart rate Normal Heart Rate: Range, When It's Dangerous, and More | Preventative health, Normal heart rate, Heart rate](https://i.pinimg.com/736x/a9/14/c1/a914c11eff879529f2eef6bc17d30e90.jpg)
Normal Heart Rate: Range, When It's Dangerous, and More | Preventative health, Normal heart rate, Heart rate
![DANGER - Written on Red Heart Rate Monitor Stock Illustration - Illustration of cardiogram, wave: 43877479 DANGER - Written on Red Heart Rate Monitor Stock Illustration - Illustration of cardiogram, wave: 43877479](https://thumbs.dreamstime.com/b/danger-written-red-heart-rate-monitor-expressing-warning-condition-health-hazard-43877479.jpg)
DANGER - Written on Red Heart Rate Monitor Stock Illustration - Illustration of cardiogram, wave: 43877479
Is a resting heart rate of 55 BPM dangerous for a 19-year-old? Should I be concerned about this? I'm not particularly active but I've started exercising and got a Fitbit which is
![Fitness trackers aren't very accurate at measuring heart rate — and that can be dangerous - The Verge Fitness trackers aren't very accurate at measuring heart rate — and that can be dangerous - The Verge](https://cdn.vox-cdn.com/thumbor/mcI4w6aoxTDgNdo4D3KBl5qKk6M=/0x0:2040x1360/1400x1400/filters:focal(857x517:1183x843):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/51333271/DSCF5750.0.0.jpg)