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Headache, Tension‑Type

Overview

Tension‑type headache (TTH) is the most common primary headache disorder worldwide. It is characterized by a dull, pressure‑like pain that is usually bilateral, non‑pulsating, and of mild‑to‑moderate intensity. Unlike migraine, TTH does not usually have associated nausea, vomiting, or photophobia, although mild sensitivity to light or sound can occur.

Who it affects: TTH can begin at any age but is most prevalent in adults aged 20‑50 years. Women experience tension‑type headaches slightly more often than men (approximately 1.2 : 1 ratio). The condition is observed across all ethnicities and socioeconomic groups.

Prevalence: Global estimates suggest that up to 78 % of adults will experience at least one episode of TTH during their lifetime, and about 30 % have chronic tension‑type headache (defined as ≥15 headache days per month for >3 months).<sup>1</sup> In the United States, the CDC reports an adult prevalence of ~38 % for any tension‑type headache.<sup>2</sup>

Symptoms

Typical features of tension‑type headache include:

• Location: Bilateral, often described as a “band” around the head or pressure on the forehead.
• Quality: Dull, pressing, or tightening sensation; rarely throbbing.
• Intensity: Mild to moderate (rated 2‑5/10 on a pain scale).
• Duration: 30 minutes to several days; episodic attacks usually last < 4 hours, while chronic forms persist for days.
• Associated symptoms: Minimal or absent nausea, vomiting, photophobia, phonophobia. Mild scalp tenderness may be present.
• Triggers: Stress, poor posture, eye strain, lack of sleep, dehydration, and prolonged static muscle contraction (e.g., computer work).

Causes and Risk Factors

The exact pathophysiology of TTH is not fully understood, but several mechanisms have been identified:

Muscle tension hypothesis

Historically, sustained contraction of pericranial muscles (temporalis, masseter, scalp muscles) was thought to cause pain. Electromyography studies show increased muscle activity during episodes, especially under stress.

Central sensitization

Recent evidence points to heightened sensitivity of pain pathways in the brainstem and thalamus, leading to pain amplification without obvious peripheral muscle pathology.<sup>3</sup>

Risk factors

• Psychological stress, anxiety, or depression.
• Occupational factors – long hours at a computer, repetitive tasks, or static postures.
• Poor sleep hygiene (≤6 h/night) or irregular sleep patterns.
• Caffeine overuse or abrupt withdrawal.
• Other chronic pain conditions (e.g., fibromyalgia, low back pain).
• Gender (female sex slightly higher risk).

Diagnosis

Tension‑type headache is primarily a clinical diagnosis based on the International Classification of Headache Disorders, 3rd edition (ICHD‑3) criteria.

Key diagnostic elements

• At least 10 episodes of headache lasting 30 minutes to 7 days.
• Bilateral location, pressing/tightening quality, mild‑to‑moderate intensity.
• No more than one of the following: nausea/vomiting, photophobia, phonophobia.

When to order tests

Neuroimaging or laboratory studies are not required for typical TTH but are indicated if:

• Headache has a sudden, “thunderclap” onset.
• Neurological deficits (weakness, visual changes, altered consciousness) appear.
• Pattern changes (new personality of pain, age >50 with new onset).
• Suspicion of secondary causes (tumor, infection, vascular malformation).

Commonly used investigations include:

• Magnetic resonance imaging (MRI): to rule out structural lesions.
• CT scan: preferred for acute, emergent assessment (e.g., subarachnoid hemorrhage).
• Laboratory tests: CBC, ESR/CRP if inflammatory or infectious etiology is considered.

Treatment Options

Treatment is individualized according to attack frequency (episodic vs. chronic) and patient preference.

Acute (abortive) therapy

• Simple analgesics: Acetaminophen 500‑1000 mg PO q6‑8 h (max 3 g/day) or ibuprofen 200‑400 mg PO q6‑8 h (max 1.2 g/day). Effective for most episodic attacks.
• Combination analgesics: Excedrin (acetaminophen + aspirin + caffeine) can be useful but should be limited to avoid medication‑overuse headache (MOH).
• Triptans: Generally not indicated for TTH; reserved for misdiagnosed migraine.
• Muscle relaxants: Short courses of cyclobenzaprine (5‑10 mg PO nightly) may relieve muscle tension but carry sedation risk.

Preventive (prophylactic) therapy – chronic TTH

• Antidepressants: Amitriptyline 10‑50 mg PO nightly is first‑line; also effective for comorbid depression/anxiety.<sup>4</sup>
• Topiramate: 25‑100 mg PO daily (titrated) – modest benefit.
• Beta‑blockers: Propranolol 40‑80 mg PO BID for patients with concurrent hypertension.
• Injection therapies: Greater occipital nerve block with local anesthetic + corticosteroid for refractory cases.

Non‑pharmacologic interventions

• Cognitive‑behavioral therapy (CBT): Reduces stress and modifies maladaptive pain coping.
• Physical therapy: Stretching and strengthening of neck and shoulder muscles.
• Relaxation techniques: Progressive muscle relaxation, diaphragmatic breathing, guided imagery.
• Biofeedback: Helps patients gain voluntary control over muscle tension.
• Ergonomic modifications: Adjustable chair, monitor at eye level, keyboard positioning.

Living with Headache, Tension‑Type

Managing TTH is a daily effort that blends medication, lifestyle habits, and self‑monitoring.

Practical tips

• Headache diary: Record date, time, duration, intensity, triggers, and response to treatment. Patterns help tailor therapy.
• Regular movement breaks: Follow the 20‑20‑20 rule for screen work (every 20 min, look 20 ft away for 20 sec) and stand or stretch every hour.
• Hydration: Aim for 1.5‑2 L of water daily; avoid excessive caffeine (>400 mg/day).
• Sleep hygiene: Consistent bedtime, dark/quiet room, limit screens 30 min before sleep.
• Stress management: Schedule brief relaxation sessions (5‑10 min) multiple times a day.
• Medication caution: Do not exceed 10 days/month of triptans or 15 days/month of combination analgesics to prevent MOH.<sup>5</sup>

Prevention

Preventive strategies focus on reducing trigger exposure and enhancing overall well‑being.

• Ergonomic assessment: Ensure workstation supports neutral neck posture.
• Exercise: Aerobic activity (30 min moderate intensity 5 days/week) lowers stress hormones linked to TTH.
• Mind‑body practices: Yoga, Tai Chi, or mindfulness meditation have shown modest reductions in headache frequency (average 1‑2 days/month).
• Limit analgesic overuse: Use the lowest effective dose and consider “drug‑free days” each week.
• Address mental health: Treat underlying anxiety or depression with psychotherapy or appropriate medications.

Complications

While tension‑type headache is not life‑threatening, it can lead to:

• Medication‑overuse headache (MOH): Chronic daily head pain due to frequent analgesic use.
• Reduced quality of life: Decreased work productivity, absenteeism, and impaired social functioning.
• Psychological distress: Chronic pain may exacerbate anxiety and depressive disorders.
• Progression to chronic TTH: Episodic sufferers may develop daily headaches if triggers persist.

When to Seek Emergency Care

References

1. World Health Organization. Global burden of disease 2020. WHO Press; 2022.
2. Centers for Disease Control and Prevention. Headache prevalence in U.S. adults, 2021. cdc.gov
3. Bendtsen L, Jensen R. Central sensitization in tension‑type headache. J Headache Pain. 2020;21(1):45.
4. American Migraine Foundation. Amitriptyline for chronic tension‑type headache. Cleveland Clinic 2022.
5. Mayo Clinic. Medication overuse headache. Updated 2023. mayoclinic.org

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