The Scientific Reason You Blush When You're Attracted To Someone
By NICOLE LAMARCO
Blushing is an emotional response that causes the body to release adrenaline, which then causes the veins to dilate. Due to this reaction, blood comes closer to the skin's surface, making the person a little red-cheeked.
Some people blush when attracted to someone because of the adrenaline, but it should not be bad, as it is an excellent way to tell the other person they are interested. A study published by the American Psychological Association showed that people who were blushing were always judged more favorably by many.
Blushing also occurs as a fight-or-flight response. When in a tight situation, blushing is a way of communicating the threat or danger, the same way a canine shows its belly or a rabbit crouches down when they think they are in trouble.