Vasodilation is a process in our bodies where blood vessels, such as arteries and veins, widen or get larger. A wider lumen (the space inside the blood vessel) helps to increase blood flow and allows more blood to reach different parts of the body. It often occurs when we are hot or exercising, because it helps to cool us down by allowing more blood to flow to the skin, where heat can be released. Vasodilation is controlled by the body’s response to changes in temperature, activity levels, and sometimes by special chemical signals. This process is important for maintaining a stable body temperature and ensuring that all parts of the body receive the oxygen and nutrients they need.
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