![]() Dimples are analogous and how they form in cheeks varies from person to person. An inferior bundle inserts below the corner of the mouth. ![]() As it travels anteriorly, it then divides with a superior bundle that inserts in the typical position above the corner of the mouth. This bifid variation of the muscle originates as a single structure from the zygomatic bone. A rarer form is the single dimple, which occurs on one side of the face only. Having bilateral dimples (dimples in both cheeks) is the most common form of cheek dimples. Dimples are genetically inherited and are a dominant trait. Cultural differences Ĭheek dimples are formed secondary to a bifid zygomaticus major muscle, whose fascial strands insert into the dermis and cause a dermal tethering effect. It may take the form of positive reinforcement, possibly for an underhand manipulative and abusive purpose. The influence of smiling on others is not necessarily benign. The researchers did not explicitly study the role of smiles in other sexual preferences. However, recent research indicates a man's smile may or may not be most effective in attracting heterosexual women, and that facial expressions such as pride or even shame might be more effective. Female smiles are appealing to heterosexual males, increasing physical attractiveness and enhancing sex appeal. One of these is an advertisement of sexual interest. Smiling is a signaling system that evolved from a need to communicate information in many different forms. ![]() ![]() Smiling can be used as a response to laughter.Smiling is sometimes a pre-laughing device and is a common pattern for paving the way to laughter.In the social context, smiling and laughter have different functions in the order of sequence in social situations: Social effects Ī smile seems to have a favorable influence upon others and makes one likable and more approachable. The smile may have evolved differently among species, especially among humans. Primatologist Signe Preuschoft traces the smile back over 30 million years of evolution to a "fear grin" stemming from monkeys and apes, who often used barely clenched teeth to portray to predators that they were harmless or to signal submission to more dominant group members. ![]()
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