A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

Add Yahoo as a preferred source to see more of our stories on Google. You know the feeling. When you first see your crush and your head starts spinning, your palms ...

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 ...

Here are the early warning signs of an irregular heartbeat, including fast, slow, or skipped beats, and when it may signal a serious heart problem.

The heart’s constant beating may actively suppress tumor growth in cardiac tissues, a new study reports. This is because cellular pathways in these tissues alter gene regulation in cancer cells to ...