“Smiling Reduces Stress And Helps The Heart” - A new study
suggests that holding a smile on one's face during periods of stress may help
the heart. The study, due to be published in a forthcoming issue of
Psychological Science. The study is the work of psychological scientists Tara
Kraft and Sarah Pressman of the University of Kansas. They looked at how
different types of smiling, and people being aware of smiling, affected their
ability to recover from stressful episodes. Researchers often class smiles as
being of two types: standard smiles, where only the mouth shapes the smile, and
genuine or Duchenne smiles, where the muscles around the mouth and the eyes
shape the smile. They found the participants who were instructed to smile, and
in particular those whose faces expressed genuine or Duchenne smiles, had lower
heart rates after recovery from the stress activities than the ones who held
their faces in neutral expressions.
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