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

You know the feeling. When you first see your crush and your head starts spinning, your palms get sweaty, and your heart begins beating a mile a minute. Is this love? Or is it … an arrhythmia? The ...

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 ...