Smiling is the secret to seeing happiness, new research reveals
Smiling for just a split second makes people more likely to see happiness in expressionless faces, new research has revealed. The study shows that even a brief weak grin makes faces appear more joyful. The pioneering experiment used electrical stimulation to spark smiles and was inspired by photographs made famous by Charles Darwin.
http://dlvr.it/T321Dk
http://dlvr.it/T321Dk
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