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 ...

The human heart, a powerful, fist-sized organ, is the hardest working muscle in the body. It works 24/7, pumping blood through vessels (its partner in the makeup of the circulatory system), so oxygen ...

Your emotional well-being has a direct impact on heart your health. Learn tools to help manage stress so you can keep your heart and mind healthy and happy.