Carley is a writer, editor and social media professional. Before starting at Forbes Health, she wrote for Sleepopolis and interned at PBS and Nickelodeon. She's a certified sleep science coach and ...

A dangerous heart rate is when your heart is beating too slowly (bradycardia) or too quickly (tachycardia). An adult’s heartbeat is too slow once it's less than 60 bpm, and too fast once it's more ...

As a lifelong health and fitness enthusiast with 15 years of experience, Rachel MacPherson is passionate about cutting through fads and noise. Her aim is to clearly communicate health information with ...

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...