A health care worker places the wearable devices across a patient's chest to capture sounds throughout the lungs that are associated with breathing. During even the most routine visits, physicians ...

S1 is the first heart sound that doctors can hear using a stethoscope. The vibrations that occur when the mitral and tricuspid valves in the heart close produce the S1 sound. There are two common ...

Researchers have developed a mobile, noninvasive, ultrathin, stretchable, battery-operated electronic tattoo that simultaneously measures the heart’s electrical and mechanical activity, offering a new ...

An S4 heart sound is a low-pitched sound that occurs toward the end of the diastole. In some cases, an underlying health condition, often one affecting the left ventricle, may cause the S4 heart sound ...