A Genuine Smile

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A genuine smile is also known as a Duchenne smile, named after a French Neurophysiologist from the early 1800s. It occurs when the lip corners move up and the muscle around the eyes (orbicularis oculi) moves as well. Oftentimes you see wrinkles around a person’s eyes. This is often described as a “twinkling” or “sparkling” in the eyes.

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