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 ...

Measuring the heart rate of great apes in captivity is essential for both health management and animal studies. However, existing most methods are either invasive or inaccurate. Now, researchers have ...

High-frequency radar can detect extremely subtle body movements, such as those caused by the heart beating. In this study, researchers used millimeter-wave radar to remotely measure heart rate in two ...