Don't forget the silence between the sounds.
It is so familiar that we often ignore it, yet this rhythmic double beat is one of the most complex and vital sounds in nature. But what actually creates that noise? It isn't the blood flowing, nor the heart "beating" like a drum. It is the sound of
While the "lub-dub" sound is a normal and reassuring sound, there are abnormal heart sounds that can indicate potential health issues. Some examples include: heartbeat sound lub dub
A higher-pitched, shorter sound marking the start of diastole. It is produced when the semilunar valves (aortic and pulmonary) close. Summary of Differences
By taking care of your heart, you can help ensure a normal and healthy heartbeat sound! Don't forget the silence between the sounds
—the aortic and pulmonary valves—located where blood leaves the heart. Purpose: These valves close to stop blood from leaking back into the heart once it has been ejected into the major arteries. nhlbi, nih (.gov) +3 Medical Significance Doctors use a stethoscope to listen to these sounds because they provide vital clues about heart health. While "lub-dub" is the standard rhythm, other sounds can occur: YouTube Heart Murmurs: Extra "whooshing" or "rasping" sounds between the beats often indicate turbulent blood flow, which may be caused by narrowed or leaking valves. Gallops (S3 and S4): These are additional low-frequency sounds that may be normal in young people but can sometimes signal heart chamber dilation or wall stiffening in older adults. YouTube +3 Would you like to know more about how
That longer pause after the "Dub" is when your heart muscle is resting and refilling with blood. It is the most important rest in the body. It isn't the blood flowing, nor the heart
Every healthy human heart sings the same simple, two-note song:
The "lub-dub" sound of a heartbeat is the sound of the heart's valves snapping shut to ensure blood flows in one direction. It is not the sound of the heart muscle contracting, but rather the vibration caused by the closure of these valves. The Two Core Sounds