National Institute Of Cardiology, Laranjeiras, Brazil

This study looks at 60 women with chest pain but clear arteries. Researchers want to see if simple, noninvasive skin tests can detect tiny blood vessel problems in the heart. If successful, it could reduce the need for invasive diagnostic procedures.

This study looks at how tiny blood vessels change as we age, even in healthy people. Researchers will use a special camera to measure blood flow in the skin of 62 adults of different ages. The goal is to find early warning signs of heart disease and understand how aging affects c…