A new study gives fresh evidence that many people with clogged heart arteries are being overtreated with stents, and that a simple blood-flow test might help prevent unnecessary care. Fewer deaths, ...

Stress is often considered an emotional state that affects the mind. However, chronic stress can lead to a number of physiological changes in the body. One of the systems in the body that also gets ...

Speckle contrast is a promising approach to assessing blood flow, developed to capture images of laser light scattered from blood vessels with affordable optical sensors and components. The study ...

Reduced blood flow can cause unpleasant symptoms, such as pain, muscle cramps, numbness, digestive issues and coldness in the hands or feet. In addition to those with poor circulation, athletes and ...