Jaw excersise
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suggests exercises to strengthen the neck muscles, which can also help improve jaw alignment and posture. A simple exercise involves placing your fists under your jaw on either side, pressing down slightly. With your tongue on the roof of your mouth, hold static contractions for about ten seconds, doing three to four repetitions. This exercise, which requires no special equipment, enhances neck strength and posture, potentially reducing neck and spine-related pain 1.
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