Body Language of Jaw Clenching or Jaw Tightening
Cue: Jaw Clenching or Jaw Tightening
Synonym(s): Clenched Jaw, Teeth clenching, Teeth Grinding, Talking Through The Teeth, Lip Occlusion.
Description: The jaws appear to be tightly compressed and the teeth can even be ground together back and forth. Sometime the muscles connected to the temple can be seen flexing.
In One Sentence: Jaw clenching is a signal of an internal struggle.
How To Use it: Flexing the jaw muscles can produce a bulge in the side of the mouth which can signal to others your mounting frustration. You might consider using this signal as a way to have others take your aggression more seriously or as a warning that you are about to lose your cool. Often, demonstrations of aggression lead others to submit and placate. This can work in your favour.
Context: General.
Verbal Translation: “I’m angry or frustrated and I want to speak out, but feel that it’s inappropriate so my teeth are clenching down to bottle myself up and prevent me from saying something I might regret.”
Variant: Sometimes the jaw is held open where muscles both work to keep the jaw open yet clenched at the same time. This causes pain at the edges of the jaw which people register as stress. See Hand Clenching or Fist Clenching.
Cue In Action: a) He put his hand out to shake hands, as they hadn’t seen each other for some time. At the conclusion of the handshake, he clenched his jaw and said “It’s nice to have you back.” Obviously, he felt quite differently. b) She wasn’t impressed. She clenched her teeth and talked thought them. Right away, he knew she was to be avoided, especially until she had time to calm down.
Meaning and/or Motivation: The jaw clenching gesture might be a throwback to a primitive desire to bite someone else. Teeth clenching is a nonverbal signal that indicates hidden or inward-directed grief, stress, fear, tension, anxiety, anger, frustration, or that aggression is being suppressed. Other times, clenching is due to intense physical strain or in anticipation of pain.
Clenching and gripping are ways of signaling that a negative thought or emotion is being held back. In this case, it is a person holding their negative thoughts back from spilling out their mouths.
Many people are fitted with retainers and mouth guards to protect their teeth as they are habitual teeth clenchers and grinders during the night. This is thought to be because of a high stress lifestyle or occupation. Some even develop pain in the muscles surrounding the jaw. When jaw clenching happens during the day, it is a sign that a person is not well and wishes to speak out, but feels like they can’t so they bottle it up. Other times, stress boils high and someone will even speak through their teeth.
Cue Cluster: Be aware of microexpressions such as snarls of the nose, eyes darting, fists slightly clenched or the fingers beginning to curl, mouth pulled to the side, tight-lipped smile, eyes rolling. As the cue is subtle, it indicates that someone is unlikely to want to be overt with their distain.
Body Language Category: Aggressive body language, Anger body language, Clenching and gripping, Closed body language, Closed facial gestures, Dislike (nonverbal), Emotional body language, Frustration or frustrated body language, Hostile body language, Microgestures, Stressful body language, Threat displays.
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