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 ...

One simple number could reveal more about your long-term health and longevity than you ever imagined.

The human heart beats nearly 100,000 times a day, powered by a precise electrical system that keeps blood flowing to every ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Learn why your heart may be beating slowly, and when it is normal and when it is not, prompting immediate check-up.

In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart health and how to improve this vital sign. Resting heart rate — the number of ...