vasodilation

Vasodilation is the process where blood vessels widen, allowing more blood to flow through them. This happens when the muscles in the vessel walls relax. Vasodilation can occur in response to various factors, like increased body temperature, physical activity, or the release of certain chemicals in the body. It helps regulate blood pressure, increase oxygen delivery to tissues, and improve overall circulation. Common examples include the flushing of the skin after exercise or exposure to heat, where blood vessels expand to cool the body down.