A let-down migraine is triggered by stress dropping: after a deadline, at the start of vacation, or on weekend mornings, with attack risk nearly five times higher in the first 6 hours after stress declines.
That finding comes from prospective diary research, and a mood shift from tense to relaxed raised odds by about 20% in the same work. The theory is that sustained stress holds stress hormones and sympathetic activity high, and the sudden comedown is what destabilizes the migraine-prone brain. Prevention is about flattening the drop, not avoiding rest. Hold sleep and wake times constant through the week and weekend, eat on schedule, keep caffeine intake level, and decompress gradually with short relaxation practices during the stressful period itself instead of crashing afterward. If this is your pattern, say so explicitly to your clinician: predictable post-stress attacks change how prevention and acute medication timing get planned.
What to do
Common questions
What is a let-down migraine?
A let-down migraine is an attack that starts when stress ends: after the deadline, on the first day of vacation, on Saturday morning after a brutal week. The name describes the mechanism: the attack follows the drop in stress, not the stress itself. Research found that when someone with migraine has a sharp decline in stress, their risk of an attack in the following 6 hours jumps to nearly five times higher, and a shift in mood from tense to relaxed raises the odds by about 20%. The suspected biology: sustained stress keeps certain hormones and nervous-system activity high, and the sudden withdrawal of that state destabilizes a migraine-prone brain. The practical fix is not avoiding relaxation; it is avoiding the cliff. Keep the basics steady through stressful periods and their aftermath: same sleep and wake times (yes, on weekends), regular meals, caffeine at consistent levels, and a deliberate wind-down rather than a full stop. Some people use brief relaxation exercises or biofeedback during high-stress stretches so the transition is a ramp instead of a drop. If your migraines reliably follow stress release, that pattern is worth telling your clinician, because it shapes both prevention and timing of treatment.