Exploring the United Arab Emirates: A Traveler's Guide

The face is capable of making 10,000 distinct facial expressions, and this huge amount of expressions is classified into 7 main groups which are (happiness, fear, anger, surprise, sadness, disgust and disdain).

The human face uses 43 different muscles to give the expression of frowning, but it only needs 17 muscles to create a smile.

Face expressive language is a universal language where all people from all different cultures and regions draw the same expressions on their faces to express something.

Researchers from the University of San Francisco were able to identify 19 different types of smiles, ranging from "social" smiles that need the fewest muscles to smiles that are more honest and spontaneous "source" and that use a greater number of muscles on the left and right sides of the face.