National Institute Of Cardiology, Laranjeiras, Brazil

This study aims to see if a noninvasive skin test can accurately detect heart blood vessel problems in women who have chest pain but clear major arteries. Researchers will use laser and camera techniques on the skin and under the tongue to measure small blood vessel function. If …

This study looks at how small blood vessels change as people age, even in those without heart disease. Researchers will use a special camera to measure blood flow in the skin of 62 healthy adults aged 18 and older. The goal is to find early signs of blood vessel aging that could …