Blunder. Public notice. Embarrassment. Shame. The laughing voices feel tortuous. A flash of heat tells you that your face is now glowing red. "Great," you think to yourself. Now you're thoroughly exposed. You utter a nervous & inauthentic laugh from the impulse to join the others; but quickly stop for the pain. Your mind races for what to do or say that will set it all right; but it's too late for that. All you want is a place to hide.
Blushing is in our physiology. It's a universal, involuntary sympathetic nervous system response caused by the dilation of the small blood vessels in the face... nowhere else... just the face... the part of you people look at... the part of you that is responsible for emotional expression. Blushing is physiologically distinguishable from other types of facial flushing, such as that caused by consumption of alcohol, arousal, or hormonally induced flashes which are not caused by beta-adrenergic stimulation. In other words, it's a special function embedded in our DNA that is programmed to be easily noticeable.
So, why? Why did God make us to blush? Is it a communication tool? Something to let others know that we're feeling overly exposed & could use a little sensitivity? Will we blush in heaven?