Many people have experienced the strange sensation of hearing their heartbeat while lying in bed. For some, this rhythmic sound is a source of curiosity, while for others, it raises concerns about ...

Is your heart beating louder than usual, or is it just because you lie down to rest? These are common questions during pregnancy that can increase your worry. The heartbeat may echo in your ears and ...

The second heart sound (S2) is produced by the closure of the aortic and pulmonic valves. The sound produced by the closure of the aortic valve is termed A2, and the sound produced by the closure of ...