理由 · why ameora
Built on the Japanese
science of weather-pain.
In Japan, 天気痛 (tenki-tsū, "weather-pain") is a recognised clinical condition. Western migraine apps rarely treat the atmosphere as a primary signal. Ameora was built to change that.
名前 · the name
Ame · Ora
雨
Ame — rain
The sky's mood. Barometric pressure, fronts, humidity, the slow turn of weather that the body feels before the mind does.
オーラ
Ora — aura
The migraine itself — and the quiet warning that often comes before it. The premonitory phase, when something can still be done.
Ameora — the atmosphere that shapes your migraine.
~50%
of migraine patients report weather as a trigger
Low P
barometric pressure drops are the dominant atmospheric factor
Premonitory
phase begins hours before pain — the window to act
研究 · research · 01
Pressure drops precede headaches — at scale.
Katsuki & Tatsumoto (2023), Headache. A retrospective cross-sectional study using a Japanese smartphone headache diary combined with hourly meteorological data and machine-learning analysis. The signal: falling barometric pressure correlated significantly with headache occurrence across thousands of users.
As pressure falls in the 24–48 hours before a storm, reported migraine likelihood rises — peaking near the trough, then receding as pressure recovers.
研究 · research · 02
The premonitory window is real — and actionable.
Ishii, Ito & Katoh (2025), BPB Reports. A clinical report on patients with weather- and pressure-related migraine treated during the premonitory phase with Goreisan (五苓散), a traditional Kampo formulation. Patients who acted in the hours before pain reported meaningful symptom reduction — reinforcing that the pre-pain window is a clinically relevant moment, not just a curiosity.
Premonitory
hours–days before
Aura
~5–60 min
Headache
4–72 h
Postdrome
up to 48 h
Ameora's forecast and SOS panel live inside the premonitory window — so you can see the weather turn, and respond, before pain arrives.
応用 · how ameora applies this
From research to a quiet daily practice.
Forecast
A daily atmospheric risk score based on pressure trend, humidity and fronts — visible before the day begins.
Log
Capture personal triggers — sleep, hydration, stress, food, hormones — alongside the weather around you.
Insights & doctor reports
See your own pattern in plain English. Share a clean summary with a clinician.
始める · begin
See the sky behind your migraines.
30-day free trial. Your data stays private.
Ameora is a tracking and awareness tool, not a medical device. It does not diagnose, treat, or prevent migraine. Always consult a qualified clinician for medical advice.