Blushing is a universal, social and involuntary signal based on self-awareness.
It is a puzzling phenomenon, still little understood. This social response indicates personal
and interpersonal awareness with a strong communicative power. Elicitors of
blushing are exposition of the self or unwanted attention. Blushing is caused by activation
of beta-adrenergic receptors that seems to be related with a mediation of sympathetic
system. Main theories about blushing underline its important function in everyday
life. Links between blush and shame, embarrassment and anxiety are presented.
At the present, different measuring instruments of blushing (physiological indexes vs.
self-report) are not fully adequate. At last, different interventions are discussed.