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

If you've ever felt your heart suddenly start thumping faster than it should, you're not alone. Research in the New England Journal of Medicine shows that at some point up to 75 percent of us ...

SVT results in the heart beating at much faster rate than normal, and can be triggered by exercise, lack of sleep, dehydration, and more. When the human body is exerted during physical activities such ...

It's essential to seek emergency care if a rapid heartbeat is paired with confusion or chest pain. ER treatments for tachycardia include medications and electrical cardioversion. Managing stress and ...