How can bruxism cause headaches? Bruxism causes morning, tension, and migraine headaches via jaw muscle fatigue and trigeminal sensitization. Learn the types, triggers, and relief options.
Written by Ann C. McCulloch, MBA | Medically Reviewed by Bradley Allen Eli, DMD, MS
Anxiety and jaw clenching are strongly linked: anxiety activates the body’s stress response, generating muscle tension that frequently manifests as repetitive jaw clenching or teeth grinding — a behavior clinically known as bruxism. Over time, untreated anxiety-driven bruxism is a recognized risk factor for chronic temporomandibular joint (TMJ) disorders. Understanding this connection is the first step toward protecting your jaw and overall orofacial health.
It is important to understand the difference between stress and anxiety, because while the body responds to both in nearly the same way, their origins differ. People experience stress when their environment presents challenges they feel they lack the resources to handle. The physical manifestations of stress include elevated cortisol, increased blood pressure, and the cascade of responses associated with the fight-or-flight system. Short-term stress can be a healthy and adaptive reaction to physical and emotional challenges, but when stress becomes chronic, it contributes to significant health problems.
Anxiety disorders and chronic stress are closely related in that the body’s physiological response to both is nearly identical. The critical distinction is that in anxiety disorders, it is the mind — not the environment — that perpetuates the stress response. Stress is a reaction to external threats; the origin of anxiety is internal and psychological. Yet even though anxiety originates internally, the resulting physical stress response in the body is the same.
People with anxiety disorders experience worry or excessive fear that is difficult to control and that interferes with functioning across important areas of daily life. In clinical anxiety disorders, this excessive worry persists for months at a time. Symptoms can include restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbance — all of which interact with jaw health.
The muscle tension people experience with anxiety frequently concentrates in the jaw. Anxiety and jaw clenching appear to be connected in the brain through the neurotransmitters involved in mood and motor regulation. Serotonin, norepinephrine, and dopamine regulate both emotional state and movement. Neurotransmitter dysregulation is the basis for several recognized movement disorders, and growing evidence indicates that bruxism itself may be driven in part by these same imbalances. (For a broader look at what drives clenching beyond anxiety alone, see why do I clench my jaw so much.)
A 2024 study published in the Journal of Oral & Facial Pain and Headache found a moderate-to-high correlation between teeth clenching and mandible bracing and symptoms of anxiety and depression in healthy young adults — with mandible bracing showing the strongest association. These findings support the importance of psychological screening in individuals who present with awake bruxism behaviors.
An important clinical finding along these lines involves the use of certain selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs). These medications, widely prescribed for anxiety, can trigger or worsen jaw clenching in some patients. If you are taking an SSRI or SNRI for anxiety and began experiencing jaw clenching after starting the medication, inform your prescribing physician. It may be possible to switch to an antidepressant class not associated with bruxism — such as tricyclic antidepressants, which also have independent evidence supporting their use in chronic pain conditions. For a detailed look at this medication relationship, see our article on why SSRIs cause jaw clenching.
The connection between anxiety and jaw clenching is well established in the medical literature, and its clinical consequences extend to the temporomandibular joint. Muscle tension and hyperactivity in response to prolonged anxiety form the biological basis for both bruxism and certain painful TMJ disorders.
Bruxism is defined as constant or repetitive activation of the jaw muscles, encompassing both tooth clenching and teeth grinding. Numerous studies have documented a strong association between anxiety disorders and bruxism, and bruxism is a recognized risk factor for the development of chronic TMJ disorders. Research published in 2025 in Archives of Oral Biology demonstrated that non-functional oral behaviors — such as wake-time tooth clenching — act as a key behavioral mechanism through which anxiety translates into painful TMJ conditions, effectively mediating the anxiety-to-TMD pathway.
Chronic TMJ disorders can involve primarily the jaw joint, primarily the jaw muscles, or both. It is muscle-based TMJ disorders and TMJ-related headaches that are most closely associated with anxiety-driven jaw clenching. “The medical evidence of the association between anxiety and TMJ disorders is strong. Furthermore, people with anxiety tend to have more severe TMJ pain than those that do not,” explains Bradley Eli, an orofacial pain specialist.
If you are already managing a TMJ flare-up, or if stress and anxiety are factors in your jaw pain history, addressing the psychological component is as clinically important as any physical treatment. The relationship between bruxism and headaches is another dimension of this connection worth understanding.
Anxiety disorders are highly responsive to treatment. The two primary medical tools for treating anxiety are psychotherapy and pharmacotherapy, and both have implications for jaw health.
The most well-supported form of psychotherapy for anxiety disorders is cognitive behavioral therapy (CBT). This is a skill-based approach, as opposed to insight-based therapy, focused on identifying and modifying thought patterns that sustain the anxiety response. CBT has also shown benefit in the management of chronic TMJ pain — a meaningful overlap given how frequently the two conditions co-occur. If specific phobias are associated with your anxiety, exposure therapy may be an appropriate adjunct.
Medications used in the treatment of anxiety disorders include antidepressants, buspirone, and certain sedating agents. As noted above, SSRIs and SNRIs are among the most commonly prescribed antidepressants for anxiety — but if jaw clenching is already present, these medications warrant careful discussion with your physician, as they may aggravate bruxism.
Self-care is an essential third pillar of anxiety management. Regular aerobic exercise, structured relaxation techniques, mindfulness practice, and healthy lifestyle habits all contribute meaningfully to reducing baseline anxiety and, by extension, jaw muscle tension. For people whose anxiety and jaw clenching are interconnected, these behavioral strategies can support both conditions simultaneously. Explore our article on simple tips to stop clenching teeth for practical, actionable guidance.
If you believe you have an anxiety disorder, speaking with a physician or mental health professional about beginning treatment is the most important step. In the meantime, several measures can reduce jaw tension and provide comfort to overworked muscles. Our dedicated guide on how to stop clenching your jaw covers this in more depth, including habit-awareness and behavioral strategies that pair well with the anxiety treatment above.
The most clinically effective approach to stopping jaw clenching is the use of an anterior bite guard. This is a custom-fit oral splint designed to cover the anterior (front) teeth while leaving the back teeth uncovered. This specific design significantly inhibits jaw muscle tension and clenching activity. People with jaw pain from muscle fatigue and tension typically notice meaningful relief when wearing an anterior bite guard. For a broader comparison of options, see our guide on the best mouth guard for TMJ pain.
Additional measures that can bring comfort to tense, fatigued jaw muscles include:
All of the above therapies — including the QuickSplint® anterior bite guard — are included in the Speed2Treat® Home Healing Kit. Addressing jaw clenching proactively is clinically important: untreated jaw tension is a risk factor for the development of chronic TMJ disorders, and early intervention improves outcomes.
Most jaw clenching related to anxiety can be managed with the measures described above, but certain symptoms warrant professional evaluation by a physician, dentist, or orofacial pain specialist:
Yes. Anxiety activates the body’s stress response, which elevates muscle tension throughout the body — including the jaw muscles. This muscle hyperactivity frequently manifests as jaw clenching or teeth grinding (bruxism). The connection is mediated in part by neurotransmitters such as serotonin and dopamine, which regulate both mood and motor function.
Anxiety-related jaw clenching often occurs during waking hours in response to stress or worry, though some people also grind at night without being aware of it. Telltale signs include a sore or fatigued jaw on waking, worn or sensitive teeth, tension headaches at the temples, and a tendency to notice your teeth pressed together during stressful moments. A dentist or orofacial pain specialist can confirm the pattern.
For many people, reducing anxiety through therapy and lifestyle changes significantly decreases jaw clenching. Cognitive behavioral therapy (CBT) in particular has shown benefit for both anxiety disorders and TMJ pain. However, because bruxism can also have other contributing factors — including sleep patterns and medication effects — a comprehensive approach addressing both the jaw and the underlying anxiety is generally most effective.
Yes. SSRIs and SNRIs, which are commonly prescribed for anxiety disorders, are associated with bruxism as a side effect in some patients. If you notice new or worsening jaw clenching after starting one of these medications, notify your prescriber. Switching to a tricyclic antidepressant, which is not associated with bruxism, may be an option — and tricyclics also have supporting evidence for use in chronic orofacial pain.
An anterior bite guard — a splint that covers only the front teeth while leaving the back teeth uncovered — is the most clinically effective oral appliance for reducing jaw muscle tension and clenching. This design interrupts the muscle contraction pattern associated with bruxism more effectively than full-coverage guards for many patients. The QuickSplint® is an anterior bite guard designed specifically for this purpose.
Chronic, untreated jaw clenching is a recognized risk factor for the development of TMJ disorders — particularly muscle-based TMJ pain and TMJ-related headaches. Bruxism places repetitive mechanical load on the masticatory muscles and the temporomandibular joint, which over time can produce inflammation, pain, and dysfunction. Addressing jaw clenching early, both by managing anxiety and protecting the joint with an oral appliance, reduces this risk.
