Factors such as age, health conditions, and physical fitness can also affect how fast your heart beats. While some people have no symptoms of tachycardia, the problem can cause palpitations (a ...

When your heart “skips a beat” it may feel like a brief flutter or flip-flop in your chest. A scary symptom that is usually harmless, that skipped beat feeling is actually an extra beat that ...

But how much do you really know about your heart and how ... to fill more than 3 super tankers. lub-DUB, lub-DUB, lub-DUB. Sound familiar? If you listen to your heart beat, you'll hear two sounds.