Medically reviewed by Jeffrey S. Lander, MD Heart sounds are the noises made as blood moves through the heart with each heartbeat. When the heart valves close, they make a distinct lubb-dupp sound.

What are heart sounds? Read on to learn more about these noises from the heart, such as what makes them and what they represent.

Medically reviewed by Jeffrey S. Lander, MD The first heart sound, or S1, is the "lub" of a normal heartbeat. It's a ...

Atypical heart sounds do not always indicate atrial fibrillation. They can stem from other causes and may require various diagnostic tests. Learn more.

Some smartwatches can measure heart rate and the heart’s electrical activity.And people can already use phone apps to record their heart sounds. Lamata’s app, called Echoes, is providing the ...

IT IS possible that the existence of the heart sounds was known to Hippocrates1 and even that he made use of his knowledge for diagnostic purposes, but William Harvey2 seems to have been the first ...

Wearable heart sound devices mark a groundbreaking shift in cardiac care, enabling continuous, non-invasive monitoring and transforming the prevention, diagnosis, and treatment of cardiovascular ...

A flexible multi-sensor device enabling handheld sensing of heart sounds by untrained users. IEEE Journal of Biomedical and Health Informatics , 2025; 1 DOI: 10.1109/JBHI.2025.3551882 Cite This Page : ...