Some people are very sensitive to emotional stress. Given a stimulus such as embarrassment, the person's sympathetic nervous system will cause blood vessels to open wide, flooding the skin with blood and resulting in  reddening of the face  . In some people, the ears, neck and upper chest may also blush. As well as causing redness  , blushing can sometimes make the affected area feel hot. Erythrophobia is the fear of blushing, from and literally "fear of redness"  .
Some people are very sensitive to emotional stress. Given a stimulus such as embarrassment, the person's sympathetic nervous system will cause blood vessels to open wide, flooding the skin with blood and resulting in somewhat shinier skin, or minimal visual change, in those with darker skin but a reddening of the face for lighter-skinned individuals . In some people, the ears, neck and upper chest may also blush. As well as causing redness or shine , blushing can sometimes make the affected area feel hot. Erythrophobia is the fear of blushing, from and literally "fear of redness" . One can see how this term makes the mistake of assuming the reddening from blushing is universal .
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somewhat shinier skin, or minimal visual change, in those with darker skin but a
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for lighter-skinned individuals
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or shine
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. One can see how this term makes the mistake of assuming the reddening from blushing is universal