In 1872 in
the book, The Expression of the Emotions
in Man and Animals, the great biologist Charles Darwin hypothesised that
our facial expressions might actually affect our mood. He called this the
‘facial feedback’ hypothesis. Whilst this hypothesis was largely dismissed at
the time, since then, several researchers have tested this theory and it seems
Darwin may have been correct.
Dr Michael
Lewis, a psychologist at Cardiff University, says that ‘simply using the same
muscles as smiling will put you in a happier mood’. This suggests that the
smile doesn’t even have to be genuine to provide benefit. But why is this so?
‘It would
appear that the way we feel emotions isn’t just restricted to our brain – there
are parts of our bodies that help and reinforce the feelings we’re having… it’s
like a feedback loop,’ says Dr Michael Lewis.
Essentially
it seems that one of the ways the brain evaluates our current mood, is through
the feedback received from which facial muscles we are using. Frowning sends a
message to the brain that you are unhappy, alternatively smiling sends a
message that you are happy; whichever facial muscles you are using amplifies
the experience of that emotion.
In a study
published in May 2008 in the Journal of Pain, people who frowned during an
unpleasant procedure reported feeling more pain than those who did not frown.
Interesting isn’t it?