The quickest way to relax your mouth is to place your tongue gently on the roof of your mouth, let your teeth separate slightly, and let your lips close softly. This “rest position” immediately reduces the load on your chewing muscles. But if your mouth tension keeps coming back, you likely need a combination of targeted exercises, self-massage, and habit changes to get lasting relief.
Mouth tension usually centers on the masseter, the powerful muscle along your cheekbone that you can feel bulge when you clench your teeth. The muscles at your temples and deeper inside the jaw also contribute. For most people, there’s no single obvious cause. Genetics, stress, how your nervous system processes pain, and even your posture all play a role. Importantly, research does not support the old belief that a bad bite or braces cause jaw problems.
The Relaxed Jaw Exercise
This is the simplest starting point and something you can do anywhere. Gently open and close your mouth while keeping your teeth slightly apart and your tongue resting on the roof of your mouth. Move slowly and keep the muscles around your jaw loose the entire time. The goal isn’t stretching; it’s teaching your jaw what “relaxed” actually feels like. Many people carry so much tension in their mouth that they’ve forgotten a neutral resting state. Do this for 30 to 60 seconds whenever you notice tightness.
Goldfish Exercises for Range of Motion
Goldfish exercises get their name from the small, controlled opening and closing motion they involve. There are two versions, and both help reduce stiffness while strengthening the muscles that support your jaw.
For the partial version, place one finger on your chin and another on the joint just in front of your ear. Drop your lower jaw halfway open, then close. Keep your tongue on the roof of your mouth throughout. Repeat six times per set.
The full version follows the same setup, but you open your mouth as wide as you comfortably can. You should feel a gentle stretch, not pain. This version builds more flexibility over time. If either version causes sharp discomfort, back off and stick with the partial opening until your jaw loosens up.
Self-Massage for the Jaw Muscles
You can release a surprising amount of tension with your fingers alone. Kaiser Permanente recommends this approach: sit or stand tall with your feet flat on the floor, then gently nod your chin down slightly. Place two or three fingers on the muscles just below your cheekbones. If you briefly clench your teeth, you’ll feel exactly where the masseter sits under your fingers.
Press into the muscle and hold that pressure for 6 to 10 seconds. Then move your fingers in small motions without sliding them across the skin. Work the area for about a minute, then shift to a different spot on the same muscle. Try to find four or five different tender points across your cheek. Repeat on the other side. Doing this once or twice a day can meaningfully reduce chronic tightness, especially when combined with the jaw exercises above.
How Breathing Affects Jaw Tension
Shallow, chest-level breathing keeps your nervous system in a low-grade stress state, which often shows up as clenching. Diaphragmatic breathing, where you breathe slowly and deeply into your belly, activates the vagus nerve and shifts your body into its rest-and-digest mode. For people dealing with jaw clenching or chronic facial pain, this type of breathing helps ease muscle tension, reduce pain sensitivity, and regulate mood over time.
A simple practice: breathe in through your nose for four counts, letting your belly expand, then out through your mouth for six counts. Even two minutes of this before bed or during a work break can interrupt the clenching cycle. Over weeks, regular diaphragmatic breathing retrains your baseline tension level, not just in your jaw but throughout your body.
Posture and Your Jaw Are Connected
If your head sits forward of your shoulders (common for anyone who spends hours at a screen), you’re putting extra strain on your jaw whether you realize it or not. Forward head posture creates tension in the neck muscles, particularly those running along the sides of your neck and into your upper back. That tension increases pressure on the jaw joint, contributing to pain and restricted movement. Even a sideways tilt of the head can create asymmetric loading that worsens symptoms on one side.
Research on people with jaw disorders has found that corrective posture exercises reduce symptoms. The practical fix: set your screen at eye level, pull your chin back gently (like you’re making a double chin), and check in with your head position a few times per hour. Strengthening the muscles between your shoulder blades with rows or band pull-aparts also helps keep your head from drifting forward.
Breaking the Daytime Clenching Habit
Most people clench during the day without noticing it, especially during focused work, driving, or stressful conversations. The most effective behavioral strategy is a simple cueing system. Set a recurring reminder on your phone every 30 to 60 minutes. When it goes off, check your jaw: are your teeth touching? Are your shoulders up near your ears? If so, return to the rest position (tongue on the roof of your mouth, teeth apart, lips closed). Some people use physical cues instead, like placing a small sticker on their laptop or steering wheel as a visual trigger to unclench.
This approach draws on a technique called habit reversal. The idea is that you can’t stop a behavior you don’t notice, so the first step is simply building awareness. Within a couple of weeks, most people start catching themselves clenching before the reminder even goes off.
Reducing Tension While You Sleep
Nighttime clenching (bruxism) is harder to control because you’re not conscious to catch it. The National Institute of Dental and Craniofacial Research recommends avoiding caffeine and alcohol, which both increase grinding during sleep. Smoking also worsens it.
Relaxing activities before bed, such as yoga, meditation, or the breathing exercises described above, help reduce the stress-driven clenching that carries into sleep. If you wake up with a sore jaw or headaches focused at your temples, a stabilization splint (a custom-fitted mouth guard from a dentist) can help redistribute the force across your teeth and reduce muscle strain. Combining a splint with therapeutic exercises tends to produce faster improvement than either approach alone, with many people noticing relief within about three weeks. One caution: prolonged splint use without regular dental check-ins has been linked to tooth shifting and bite changes, so follow-up matters.
When Home Strategies Aren’t Enough
Conservative, at-home approaches are the recommended first line for managing jaw tension and related disorders. But if you’ve been consistent with exercises, massage, and habit changes for several weeks and still have significant pain or limited jaw movement, physical therapy focused on the jaw is a logical next step. Therapists can apply manual techniques to areas you can’t easily reach yourself and design a progressive exercise program.
In select cases where muscle spasm is severe, some clinicians use targeted injections to reduce overactivity in the chewing muscles, though this is considered a secondary option rather than a starting point. Psychological support also plays a role for people whose jaw tension is closely tied to anxiety or chronic stress, since addressing the emotional driver often reduces the physical symptom.