Heart valve diseases affect how blood flows through the heart muscle. Not all people experience symptoms, even if the condition is severe. You may recognize these early signs and symptoms of heart ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...

POTS (Postural Orthostatic Tachycardia Syndrome) represents a mechanical failure of blood flow, distinct from standard heart ...

Aortic stenosis is a narrowing of the aortic valve that affects how blood flows through the heart and body. While not often linked to heart valve narrowing, high and irregular blood pressure can ...

Supercomputing allocations through NSF's ACCESS initiative on TACC's Stampede3 supercomputer are helping scientists ...

A sudden restriction of blood flow to the brain. That's how scientists have traditionally explained why people faint. But several mysteries remain: What causes someone's blood flow to spontaneously ...

Cutaneous blood flow and microcirculation underpin critical physiological processes including thermoregulation, nutrient delivery and immune defence. The skin’s vascular network, comprising ...

A groundbreaking soft robotic heart could transform treatment for end-stage heart failure, bringing us closer than ever to fully functional, biocompatible artificial organs. Study: A soft robotic ...

A heart PET scan is a noninvasive imaging test that uses a small amount of radiation. It helps doctors understand how the heart functions and whether it is healthy. Cardiac or heart PET scans create ...