How does our cheeks turn red when we blush?

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How does our cheeks turn red when we blush?

In:

I don’t remember the how

But blush is the mix of the words “blood rush”, so I suppose that it’s blood rushing to our cheeks and spreading (in some cases) the rest of the face

But I don’t remember the how

Adrenaline (released as part of your “fight or flight response, like when you’re embarrassed) causes your veins to dilate, or get larger to accommodate more blood flow. This includes the veins in your face. The veins are larger, and there’s more blood flowing in your face, and they show through your skin, giving the reddened appearance.