Is that heart beating sound driving you wild in Atomfall? Fortunately, there are a variety of ways to make it less frequent, ...

Your heart is racing or skipping beats enough to affect your day-to-day activities ... may notice your heartbeat more when you lie on your left side. Your heartbeat may sound louder if your hand or ...

Sound familiar? If you listen to your heart beat, you'll hear two sounds. These "lub" and "DUB" sounds are made by the heart valves as they open and close. See the valves in action.