The film presents a detailed fluorographic study of the normal heart using venous catheterization, showcasing physiological data such as pressure and flow measurements. It illustrates blood flow ...

Poor circulation is a widespread issue, particularly as people age, and it can cause symptoms such as cold hands and feet, tingling, numbness, swelling, or heaviness in the legs. If left unaddressed, ...

A sudden restriction of blood flow to the brain. That's how scientists have traditionally explained why people faint. But several mysteries remain: What causes someone's blood flow to spontaneously ...