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Musculoskeletal BODY HANDBOOK
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Tension Headache
A dull band of pressure across the forehead by mid-afternoon, a painkiller from the drawer twice a week, the whole thing chalked up to stress. The quietest finding in headache medicine is that those responsibly-taken painkillers are themselves manufacturing the next headache, once you cross a threshold lower than any pharmacy will name β€” fifteen days a month for ordinary painkillers, ten for the combination ones. Tension-type headache is the most common headache in the world, treatable in the attack and reducible in frequency; the call that re-orders your year isn't a stronger pill, it's which side of that line you're on.
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Almost everyone gets these. Most people manage them wrong in the same few ways β€” paracetamol in dribbles instead of one real ibuprofen dose taken early; daily painkillers quietly crossing the line where they become the cause of the headaches they were bought to fix; the occasional mild migraine being treated as plain tension. Get the rules right and the dull-head afternoons drop sharply. Miss them and the occasional pattern quietly grades into the daily one. Cheap to act on, and mostly a matter of knowing what counts and when.

The lay name suggests a literal clench, and that model has been dead for thirty years. Surface-EMG studies in the 1990s showed that people with tension-type headache do not, in fact, sit with sustained muscle contraction between attacks Bendtsen & Jensen 2006. What is happening is closer to a sensitisation of the small pain nerves in the muscles around the skull β€” across the forehead and temples, along the jaw, around the base of the head, and down the slope from neck to shoulder. Those nerves get primed to fire at lower thresholds. Pressing those muscles reproduces the headache; the more often the headache happens, the more sensitised they get.

For occasional, episodic attacks that is most of the story. For people whose headaches creep up to half the month or more, a second layer comes in: the spinal-cord relay that handles those nerves' input also turns up its gain, and the pain pathways start firing for less reason Bendtsen 2000. This is why drugs that act on the central pain system β€” notably amitriptyline β€” work better than purely physical measures for the chronic version, while the occasional attack mostly answers to one well-timed painkiller.

Posture and screen-bound habit feed into this as one input, not the whole story. Forward-head posture is more common in chronic sufferers than in matched controls FernΓ‘ndez-de-las-PeΓ±as et al. 2006; tender spots in the suboccipital muscles, the upper trapezius and the temple muscle are present in the large majority of chronic cases CouppΓ© et al. 2007. Stress, jaw clenching, broken sleep and skipped meals are the other usual loading inputs. They are triggers feeding a sensitised system; fixing one of them helps in proportion to how much it was contributing.

What actually works

The evidence base is one of the more settled in headache medicine. For an active attack, a real dose of an anti-inflammatory taken early is the move: ibuprofen 400 mg is the most-studied option, with about one in seven readers reaching pain-free at two hours over what placebo would deliver, across the Cochrane review of nine randomised trials Derry et al. 2015. Paracetamol works, but works less β€” at 1000 mg it edges placebo on the same hard endpoint, and not by much Stephens et al. 2016. The split between felt better and pain gone matters here: either drug will dull the attack; the anti-inflammatory is the one that ends it.

For people in the frequent zone β€” two days a week or more β€” the strongest preventive evidence is for amitriptyline, an old, cheap drug originally sold for depression but used at lower doses for nerve-pain conditions. A pooled analysis of trials found roughly half the headache days disappear over months of treatment, with the effect size building from week to week Jackson et al. 2010. The European specialist guideline lists it first-line for this reason Bendtsen et al. 2010. Biofeedback β€” learning to relax the head-and-neck muscles using a tone or visual signal driven by your own muscle activity β€” matches drug-grade effect sizes across more than fifty trials, and the gains hold at follow-up Nestoriuc et al. 2008.

Acupuncture has Cochrane-level evidence for tension-headache prevention: roughly half of treated patients see a meaningful drop in headache days, against about a quarter in no-treatment comparison Linde et al. 2016. Botulinum toxin, which works for chronic migraine, does not work for chronic tension-type headache; multiple placebo-controlled trials have shown no benefit, and the specialist guideline explicitly advises against it Bendtsen et al. 2010.

Three things most people get wrong

The painkiller you take twice a week, with a real attack, is fine. The painkiller you take to head off the dull pressing on most days is, past a threshold the labels do not name, the cause of the dull pressing on most days. Medication-overuse headache β€” a near-daily headache state driven by frequent analgesic use in someone who already had headaches β€” runs on a documented count: simple painkillers on fifteen or more days a month for more than three months, or combination products (the painkiller-plus-caffeine ones especially), triptans, or opioids on ten or more days a month Diener et al. 2016. The trap is invisible from inside, because it presents as "my headaches are getting worse, I need to keep medicating." The fix is the opposite move: stop the offending medication and ride out the rebound. Roughly half of overusers revert to their original episodic pattern after a clean withdrawal Diener et al. 2016.

The second wrong-thing is the lay name. "Tension" suggests literal sustained muscle clench, which the EMG studies of the last thirty years have not found Bendtsen & Jensen 2006. The headache is real; the muscles are sensitised, not contracted. This is why an entire commercial category β€” posture braces, neck stretchers, blue-light glasses sold for "screen headaches," tension pillows β€” shows so little signal in headache trials. The implied mechanism was retired before the products were invented.

The third: what people call a "tension headache" is, on careful interview, often a mild or moderate migraine that hasn't been correctly identified. If a headache is one-sided, throbs rather than presses, brings nausea, makes light or sound briefly unbearable, or knocks out the rest of the day β€” that is migraine territory, and it answers to a triptan, not a bigger anti-inflammatory. The corollary: an honest answer to "what does the bad version of this feel like" matters more than the label you've been using.

The slow slide if you don't act

Episodic tension-type headache has a documented trajectory into the chronic version when it is poorly handled. The two main drivers are well-established: medication overuse layered on top of the original pattern, and the cumulative sensitisation of the central pain pathways that comes from headache after headache being processed without recovery Diener et al. 2016 Bendtsen 2000. The slow version reads like this: a stressful quarter brings four headache days a week and a daily painkiller; the painkiller becomes the new floor; the headaches don't ease when the stress does; you become a person who "just gets headaches"; five years pass.

What that looks like day to day β€” and the Global Burden of Disease data agree on this Stovner et al. 2018 β€” is a steady drag on the parts of life that are sensitive to a half-functional afternoon. The Tuesday meeting goes worse than it should. The evening you wanted for someone you love goes into bed early instead. A partner notices you've been looking tired for months, then for a year. People at work stop including you in things that need someone sharp at 4pm. Anxiety and depression rates run measurably higher in people with chronic tension-type headache than in those without it; causation runs both ways, and reversing the headache pattern lifts the mood load with it.

The chronic version is substantially harder to reverse than to prevent. The window for the cheap intervention β€” the right acute dose, the honest count of analgesic days, the call to a clinician when the count climbs past two days a week β€” is the episodic stage. After chronification the road back runs through medication withdrawal, weeks of rebound, and months of preventive treatment. It works; it is just not free.

The protocol

For an attack, take a real anti-inflammatory dose early β€” within the first thirty minutes of the headache becoming noticeable, before you spend two hours hoping it'll go away on its own. The earlier and the bigger the first dose, the cleaner the resolution.

Then keep an honest count. Headache days per month is the number that matters β€” write them on a calendar or in a notes app for a quarter. Below four days a month: keep doing what you're doing. Four to eight: tighten the lifestyle inputs β€” sleep regularity, water through the day, eye-strain breaks for screen workers, watch jaw clenching at night β€” and stay below the medication-overuse thresholds. Eight or more headache days a month, and it is worth talking to a clinician about prevention.

The lifestyle layer matters but is supporting, not load-bearing. Modest evidence backs regular water through the day reducing headache severity in chronic-headache cohorts Spigt et al. 2012, plus regular sleep hours and breaking up screen time. These are the rails that keep the system from sliding back; they are not, on their own, the fix for a frequent or chronic pattern.

When it isn't tension headache

Tension-type headache has a recognisable shape: bilateral, pressing, mild-to-moderate, not aggravated by climbing stairs, no nausea, no aura. The everyday dull band at the end of a screen-bound day is not the worry. The call is between recognising your usual pattern and noticing when something deviates from it.

Where this goes wrong

  • Chasing relief with the wrong dose, on the wrong drug, at the wrong time. Paracetamol every few hours through the day in dribbles performs worse on an attack than a single well-timed ibuprofen Derry et al. 2015. Half-doses taken cautiously perform worst of all.
  • Crossing the medication-overuse line without noticing. The threshold is days per month, not pills per attack β€” one pill on fifteen days a month is over the line. People watch the pill count and miss the day count.
  • Treating an undiagnosed migraine as plain tension. A "tension headache" that nauseates you or shuts down the rest of the day is not a tension headache; the answer there is a migraine workup, not a bigger anti-inflammatory.
  • Quitting amitriptyline at week two. The drug needs four to eight weeks to show full effect, and the early side effects (dry mouth, sedation) often peak before the headache benefit lands Jackson et al. 2010. The trial that "didn't work" usually wasn't a fair trial.
  • Buying the tension-product market. Posture braces, neck stretchers, blue-light glasses sold for screen headaches, "tension" pillows β€” the implied mechanism (literal sustained muscle clench) was retired in the 1990s and these products show little signal in headache trials Bendtsen & Jensen 2006. Spend the money on a real workstation setup, or on a course of biofeedback, instead.

What changes when you act on this

Week one: an attack ends in the time it used to take to half-end, because the dose was right and went in early β€” not the paracetamol-in-dribbles version of either. The afternoon you wrote off comes back to you. The count starts.

Month three: you have an honest tally of headache days. If you were already in the four-or-fewer-a-month zone, the rules have kept you there. If you were higher, you are three months into amitriptyline at a tolerable nightly dose, or three months into biofeedback, and the count is dropping. The literature's expectation is that headache days roughly halve over months on either route, and that is the experience of most people who finish the course Jackson et al. 2010 Nestoriuc et al. 2008.

Year one: the social shift. The version of you that masked an afternoon and then a meeting with a dull pressing forehead becomes the version that just had a normal Tuesday. A partner stops noticing you look tired by Wednesday. People at work stop quietly routing the late-afternoon hard problems around you. You have stopped describing yourself as someone who "just gets headaches," because you have an honest count and the count is small Stovner et al. 2018.

None of this is a cure. Tension-type headache is recurrent and the entry stays a page you can revisit. The difference is between occasional, recognised, treated correctly and daily, accepted, escalating β€” and the slide from the first to the second is exactly what the rules above are there to interrupt.

Adjacent terrain worth knowing about: migraine β€” a separate disorder with its own drug class, often confused with tension-type when mild; the cleanest tell is throbbing-plus-disabling-plus-nausea. Cluster headache β€” rare, severe, one-sided, around the eye; an emergency-recognition pattern. Cervicogenic headache β€” headache arising from the upper neck joints, easy to confuse with chronic tension-type when neck pain dominates. Medication-overuse headache stands on its own for readers who suspect they are already inside the trap and need the withdrawal playbook. And the general lifestyle layers this entry leans on β€” regular sleep, hydration, screen ergonomics, stress management β€” each have their own page where the depth lives.

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