Heart health is about more than just the heart itself. It’s a two-way street between the heart and the rest of the body. However, many U.S. adults aren’t aware of the connection between organs.

Researchers found that while the menstrual cycle changes heart rate variability (HRV), it does not significantly affect ...

Chronic stress affects more than just your mood. Discover seven body systems that suffer when stress goes on for too long.

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 ...

Your heart beats around 100,000 times every day. Heart rate is a key marker of cardiovascular activity and an important vital sign. But your pulse is not as steady as a precision clock – nor would you ...