The human heart is an extraordinary organ, responsible for tirelessly pumping blood to deliver oxygen and nutrients to every part of the body. Its rhythm—heart rate—is an essential vital sign checked ...

Some people with heart failure need to take multiple medicines each day to keep their symptoms under control. Heart failure is a chronic, or long-term, condition. It can lead to issues not only in the ...

From artificial heart valves to cellular transplants, new treatments for cardiovascular ailments are being developed every day. To model how they work, researchers need a reliable way to observe the ...