“… the most peculiar and most human of all expressions.” - according to Charles Darwin.
Blushing is the temporary reddening of a person's face due to (apparently specialised) blood vessel dilation mechanisms. It is normally involuntary and triggered by emotional stress, such as that associated with embarrassment, anger, or romantic stimulation.
It has been suggested that blushing and flushing are the visible manifestations of the physiological rebound of the basic instinctual fight/flight mechanism, when physical action is not possible.
However, no exact mechanism or evolutionary advantage has been determined.
More info : wikipedia
Ideas for new topics, and suggested additions / corrections for old ones, are always welcome.
If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !
Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.
( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)
You are currently viewing an auto-translated version of Wikenigma
Please be aware that no automatic translation engines are 100% accurate, and so the auto-translated content will very probably feature errors and omissions.
Nevertheless, Wikenigma hopes that the translated content will help to attract a wider global audience.