Why does our skin turn red when we exercise?!

Question:
Answers:
When you exercise, your body heats up. Your body needs to release that heat somehow; hence, we sweat and we turn red. Redness occurs when the blood vessels in the skin dilate (expand, get bigger) and move closer to the surface. This allows the heat to dissipate because of the increased surface area. If your skin is particularly pale, the effect is more noticeable.

Other Answers:
Because our blood vessels get active. (Just a guess!)

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