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: These chemicals act as natural pain relievers and stress reducers.

: Named after neurologist Guillaume Duchenne, this is the genuine smile. It involves the involuntary contraction of the orbicularis oculi muscle (lifting the cheeks and crinkling the eyes). ZГўmbet

: Smiling individuals are perceived as more trustworthy, competent, and friendly. : These chemicals act as natural pain relievers

: It is one of the few facial expressions recognized instantly in every culture. ZГўmbet

A smile is a natural drug. Activating it triggers a chemical cascade in the brain that drastically alters our mood.

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