A frown is a face shape. 

A frown is a look on your face. 


A frown is a look on your face. 


A frown is a look on your face that shows how you feel. 

There are a few different ways a frown works. In many cases, the eyebrows move close together. This movement makes the forehead look wrinkled. Charles Darwin described how this action pulls the upper lip up. It also makes the corners of the mouth turn down. 

Scientists have studied these facial movements for a long time. Charles Darwin wrote about these expressions in his 1872 book. His book was titled The Expression of the Emotions in Man and Animals. He used photographs of children to show how they frown and cry. 
Frowning can even change how a person thinks or acts. One study showed that holding a frown can make things seem less funny. People who frowned also thought images looked more unpleasant. 
Many people wonder how many muscles it takes to frown. It is hard to say because every face is different. Some people think frowning is harder than smiling. A minimal frown might only use six muscles to move the mouth. However, Dr. David H. Song from the University of Chicago Medical Center says otherwise. He says a frown uses 11 muscles while a smile uses 12. 
A frown, also known as a scowl, is a specific facial expression. It occurs when the eyebrows are brought together and the forehead becomes wrinkled. 

Charles Darwin provided a detailed description of the mechanics of a frown. He noted that the primary action is the furrowing of the brow. This movement leads to a rise in the upper lip. It also causes the corners of the mouth to turn downward. 
The study of facial expressions has a long history in science. Charles Darwin was a key figure in this field. In his 1872 book, *The Expression of the Emotions in Man and Animals*, he documented these movements. He used photographs of children to demonstrate how they frown and cry. 
Frowning can have surprising effects on how a person perceives the world. Scientific studies have shown that the physical act of frowning can change your mood. Participants who held their faces in a frown ranked images as more unpleasant than those with neutral faces. Frowning can also change how people react to humor. In one test, participants with a manipulated frown reported feeling more anger. They also ranked cartoons as being less funny than those who were smiling. This suggests that the physical expression of an emotion can reinforce the feeling itself.
Social dynamics also play a role in how often people frown. In social settings, frowns are most often used to express anger or displeasure. There are social differences regarding who is permitted to frown. Individuals with high social status are often permitted to display their emotions more freely. Because of this, socially dominant individuals are more likely to frown than those with lower status. In many cultures, it is considered more socially acceptable for men to display negative emotions. Consequently, women tend to be less likely to frown than men. 
Frowns can also influence how we judge others in brief encounters. For example, a study showed that students watched a 30-second video of a frowning college professor. Even without audio, the students rated the professor poorly on their evaluations. Frowns can also trigger complex brain responses in others. When the loser of a competition frowns, it can increase brain responses associated with pleasure in the winner. This is possibly related to schadenfreude, which is the experience of pleasure in the misfortune of others.
There is a common belief that it takes more muscles to frown than to smile. However, the exact number is difficult to determine. A minimal smile requires only ten muscles to lift the upper lip and mouth corners. A minimal frown requires only six muscles to lower the corners of the mouth. Dr. David H. Song of the University of Chicago Medical Center provides a different count. He states that a frown requires 11 muscles, while a smile requires 12. 
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