Why do my temples throb when I hang my head upside down for a minute?

Why do my temples throb when I hang my head upside down for a minute?

1. Introduction Hanging the head upside down causes the temples to throb because gravity forcefully drives arterial blood into the cranial vessels while simultaneously obstructing venous drainage back to the heart. This profound shift in hydrostatic pressure engorges the superficial temporal arteries and veins located just beneath the skin. The physical expansion of these vessels … Read more