頭痛ーる-天気予報で体調管理

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About this app

A weather app used by over 1 million people every month! Also recommended for managing your menstrual cycle!

This weather app focuses on headaches and menstrual pain caused by changes in atmospheric pressure due to weather changes, often referred to as "weather-related illnesses." It uses weather forecasts and atmospheric pressure forecasts devised by weather forecasters.

You can check the timing of when pain (headaches) is likely to occur along with the weather forecast using an atmospheric pressure forecast graph.

-----What is atmospheric pressure…?-----
It's the weight of the air that acts on you. A whopping 15 tons!

It changes dynamically every day and affects your physical condition.

-----What you can do with Headache-ru (weather app)-----
- Headache prediction: Predict headaches with an atmospheric pressure graph and push notifications linked to the weather forecast.
- National map: Check atmospheric pressure and weather forecasts for major cities nationwide. Please also use this for preventing heatstroke, etc.
- GPS function: Registered locations automatically switch to your current location, allowing you to check weather and barometric pressure forecasts.
- Pain & Medication Record: Easily record the occurrence and intensity of pain (headaches, etc.), medication use, and medication names.
By keeping a history of medications taken, you can check the relationship with your physical condition.
- Pain Notebook: Check trends with a list of records (also useful for those with autonomic nervous system disorders).
- AI Answers: By recording headaches (and other pains), the AI ​​analyzes the relationship between your pain and barometric pressure changes caused by the weather.
- Menstrual Cycle Record: Record the start date of your period, manage your menstrual cycle, and predict your next period date. You can check the relationship between weather and barometric pressure changes, your physical condition, and your menstrual cycle.

-----Recommended for people like this!-----
"I want to choose days when I don't get headaches for travel or important meetings!" "If only I knew what triggered my headaches... I could prepare myself."
"I always feel unwell on rainy mornings..."
"I've been bedridden on typhoon days."
"I want to manage the health of my family, pets, and loved ones."
"I want to record not only headaches, but also my menstrual cycle."
(Also for those with cerebrospinal fluid leakage, fibromyalgia, migraines, depression, insomnia, sleep deprivation, rheumatism, stiff shoulders, joint and old injury pain, autonomic nervous system disorders, etc.)

-----Features added for Premium Service members-----
- Everyone's Pain Now: Check how many other people are experiencing health problems besides yourself.
- Pain Calendar: Easily see the days you've recorded pain in a calendar view.
- Monthly Pain Report: Understand trends with monthly summaries of "headache" and other pain occurrences, medication usage, recording times, etc.
- Regional Map: Check barometric pressure and weather forecasts for each prefecture.
- My Notifications: Receive push notifications if a drop in barometric pressure is expected today or tomorrow due to worsening weather at your registered location.
- Recording Period: Unlimited recording period, review past records retrospectively
- Medium-sized widget function
- Data synchronization function: View health data such as sleep duration and heart rate by syncing with Fitbit
- Ad-free: Ads are removed from the barometric pressure graph and pain notes. Display area is increased.

-----Headache-ru Feature Introduction-----
【Barometric Pressure Graph】
- You can check barometric pressure forecasts up to approximately 1.3 days in advance (10 days in advance with premium) in a graph.

- An alert will appear on the graph when the atmospheric pressure drops significantly below normal.

[Recording Function]
- Record your physical condition and medication use in 4 stages, in 1-hour increments, and enter notes.
- Medications are divided into over-the-counter and prescription drugs, and you can record the drug name. You can register multiple medications at once.
- Record the start date of your period, manage your menstrual cycle, and predict your next period date.

[Pain Notebook]
- View recorded content in a list.
- Display weather and atmospheric pressure data for the time of recording.

[AI Insights]
- By recording your discomfort, the AI ​​analyzes the relationship between your pain and atmospheric pressure changes.
- Patterns the causes of your discomfort based on the analysis results.
- The more records you make, the more accurate the analysis becomes.

[Other]
- National Map: View atmospheric pressure, weather, temperature, maximum wind speed, and minimum humidity for major cities nationwide up to the day after tomorrow.
- Headache Alert Push Notification: Receive a push notification when a drop in atmospheric pressure that may cause headaches is expected.
- Location Registration: Register locations at the city/town/village level (weather forecasts for approximately 1900 locations nationwide are available!)
- Privacy Settings: You can toggle the display/hide of location information, menstruation, pain, medication records, and notes from the barometric pressure graph and national map.
- Headache-ru Column: Characters explain barometric pressure and headaches in an easy-to-understand and simple way!
- Weather Characters: Dr. Owl, Maro, and the mysterious Teru Teru Cat. These cute and laid-back characters have secret stories!?

- Please be sure to check the Help & Terms, FAQ, Data Handling, Terms of Use, and other terms and conditions before using the service.

-----Various Inquiries-----
- FAQ
https://zutool.jp/app/faq.html

- Premium Service Terms of Use
https://www.otenki.com/app_android_tos.htm

- Privacy Policy
https://h-medtech.com/privacy-policy

- For any other inquiries or problems, please contact us at the email address below:
zutool-info@h-medtech.com

Reference
Kenneth J. Mukamal, MD, Gregory A. Wellenius, ScD, Helen H. Suh, ScD and Murray A. Mittleman, MD, DrPH (2009). Weather and air pollution as triggers of severe headaches. Neurology, 2009; 72: 922-927
International Headache Society "Kyoto Headache Declaration" (October 2005)
An Invitation to Headache Treatment ~To Young Doctors and Medical Students~ "In the Primary Care Setting" Japanese Headache Society Website http://www.jhsnet.org/kensyui_sasoi.html (As of April 2013)

*This app is not intended for medical diagnosis or treatment. If you have any concerns about your health, please consult a medical institution.
Measures against weather diseases based on weather and atmospheric pressure forecasts. An app that allows you to predict days when a headache is likely to occur and manage your physical condition in advance. Includes notifications to notify you when low pressure occurs.
Updated on
Sep 15, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Health and fitness, App activity and 2 others
  • Data isn’t encrypted

What’s new

いつも頭痛ーるをご利用いただきありがとうございます。
今回のアップデートでは軽微な修正を行いました。
引き続き頭痛ーるをよろしくお願いします。
Content rating
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App support

About the developer
HEDGEHOG MEDTECH, INC.
zutool-info@medley.jp
6-10-1, ROPPONGI MINATO-KU, 東京都 106-0032 Japan
+81 80-4227-5506