Soundness of mind

What is the rarest smile?

According to research, the rarest smile is the Duchenne Smile. It is a genuine, genuine smile of happiness that is characterized by the crinkling of the eyes and the raising of the cheeks. It is believed to be caused by the simultaneous contraction of the orbicularis oculi and zygomatic major muscles.

What is a half smile?

A half smile is a facial expression in which the corners of the mouth are slightly raised and the eyes are closed or narrowed, indicating amusement, contentment, or pleasure. Half smiles are typically seen as more subtle and understated expressions than a full smile, and they may be used to communicate a variety of emotions, from casual friendliness to sarcasm.

How many types of smiles are there?

There are generally three types of smiles: the Duchenne Smile (or genuine smile), the Social Smile, and the Pan American Smile. The Duchenne Smile is a genuine smile that is characterized by the movement of both the zygomatic major (the muscles that lift the corners of the mouth) and the orbicularis oculi (the muscles that form crow’s feet around the eyes). The Social Smile is a polite, closed-mouth smile used in most social situations, while the Pan American Smile is a wide, open-mouthed smile that is seen most often in Latin American cultures.