The heart is the only muscle that contracts and relaxes continuously over a lifetime to pump oxygen-rich blood to the body's organs. Researchers at UT Southwestern Medical Center now have identified a ...

This is a preview. Log in through your library . Abstract Force enhancement (FE) is a phenomenon that is present in skeletal muscle. It is characterized by progressive forces upon active ...

Palpitations due to premature beats, either ventricular contractions (PVCs) or atrial contractions (PACs), can be extremely vexing even when we know they are benign. For many individuals, these ...

One promising strategy to remuscularize the injured heart is the direct cardiac reprogramming of heart fibroblast cells into cardiomyocytes. Researchers have identified TBX20 as the key missing ...

A commonly used heart monitor may be a simple tool for predicting the risk of atrial fibrillation, the most frequently diagnosed type of irregular heart rhythm, according to researchers at UC San ...

The potential protective effect of sirtuin enzymes in age-related diseases, including cardiovascular diseases, remains an area of intense investigation. Now, researchers has determined that sirtuin 1 ...

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 ...

Since early in the pandemic, COVID-19 has been associated with heart problems, including reduced ability to pump blood and abnormal heart rhythms. But it's been an open question whether these problems ...

Heart attacks and cardiac arrest represent two of the most serious cardiovascular emergencies facing modern medicine, yet public confusion between these distinct conditions remains widespread. This ...

With the brain getting a lot of attention during Alzheimer's and Brain Awareness Month, here's a surprise quiz: Which organ of the body is second only to the brain in its psychological importance? By ...

Irregular heartbeat conditions affect millions of people worldwide, causing hearts to beat too fast, too slow, or with an uneven rhythm. These cardiac rhythm disturbances, medically known as ...