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  1. Apr 9, 2013 · Whenever we smile, there are 2 potential muscles we activate. The first one is the zygomaticus major and it controls the corners of your mouth. Whenever this muscle only is activated, it’s not actually a genuine smile. Scientists call this also the “social” smile.

  2. Today reminders to ‘smile’ are ubiquitous, printed on fridge magnets, adverts, self-help books and occasionally hurled at us by well-meaning strangers. Those who smile often are thought of as...

    • Reward smiles. Many smiles arise from a positive feeling — contentment, approval, or even happiness in the midst of sorrow. Researchers describe these as “reward” smiles because we use them to motivate ourselves or other people.
    • Affiliative smiles. People also use smiles to reassure others, to be polite, and to communicate trustworthiness, belonging, and good intentions.
    • Dominance smiles. People sometimes smile to show their superiority, to communicate contempt or derision, and to make others feel less powerful.
    • The lying smile. If you’re looking for a foolproof lie detector, the face isn’t it. According to research, even the most experienced law enforcement officials only spot liars about half the time.
  3. Mar 19, 2022 · Here’s the lowdown on what smiles really mean, what we’ve learned from two years of hiding them, and why now may be the perfect time to fix yours.

    • Sandy Hingston
  4. Sep 10, 2018 · Although smiles are generally taken as signs of contentment, humans actually smile for many different reasons. Sometimes we do smile simply because we are happy, but we also smile for social...

  5. Sep 22, 2024 · One of the most intriguing aspects of social smiling is its role in empathy and connection. When we see someone smile, our brains automatically activate the same neural pathways associated with smiling. This phenomenon, known as “mirror neurons,” helps us understand and connect with others’ emotions.

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  7. Jun 13, 2018 · An optimal smile is characterized by an upper lip that reaches the gingival margins, with an upward or straight curvature between the philtrum and commissures; an upper incisal line coincident...

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