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 ...

In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches ...

You’re familiar with the feeling of your heart pounding in your chest, your blood pulsing through your veins with increasing frequency when you’re scared, stressed, or sweating it out at the gym.