Understand how weather
impacts your RA
We interpret your wearable data alongside environmental signals to surface the triggers that matter to you. Gently. Clearly.
Capabilities
Interpretation, not just data
Most tools collect signals. We interpret them — turning sleep, strain, recovery, and weather into clarity about what triggers your flares.
Personalized triggers
Everyone’s RA is different. We find your specific environmental triggers, not population averages.
Your devices, connected
Apple Health, Oura, Fitbit — we sync with the wearables your body already lives on.
Weather as biological load
Pressure, humidity, temperature modeled as physiological stress against your health data.
Lag analysis
Effects don’t always hit same-day. We check 1–2 day delays to catch what others miss.
Suspected vs. confirmed
Tell us what you suspect triggers you. We’ll tell you what the data actually shows.
Actionable, not academic
Ranked triggers with specific recommendations you can share with your rheumatologist.
Your report
10 pages of clarity
Correlation heatmaps, trigger rankings, timeline overlays, personalized recommendations. All in one beautifully designed PDF.
RA Environmental
Impact Report
How weather and environment affect your symptoms
Jan 15 – Apr 22, 2025 · Chicago, IL
Executive Summary
Key Findings
HRV drops significantly when barometric pressure falls below 1010 hPa. Pressure changes appear to be your primary trigger.
Analysis
Correlation Matrix
Top Correlations
Pressure vs HRV
r = -0.58
Humidity vs Pain
r = +0.44
Rain vs Steps
r = -0.41
Humidity vs RHR
r = +0.38
Process
Three steps to your triggers
Tell us about your RA
Your suspected triggers, severity, medications. We learn your baseline before asking for data.
Upload your data
We walk you through exporting from Apple Health, Oura, or Fitbit. Step-by-step. Takes 2 minutes.
Get your report
10-page personalized PDF with ranked triggers, correlation analysis, and what to do about it.
Coverage
What we analyze
Your body
Your environment
Examples
Sample findings
Pressure drops → Pain increases
StrongPain rose 2.3 points within 24h of barometric drops >5 hPa.
High humidity → Lower HRV
ModerateHRV dropped 15% on days humidity exceeded 75%.
Cold snaps → Sleep disruption
ModerateDeep sleep fell 22 min when temps dropped below 35°F.
Wind events → Elevated resting HR
ModerateRHR rose 4 bpm the day after winds exceeded 25 km/h.
What doctors say
Rheumatologists on weather & RA
The weather-pain connection isn't just patient perception. Leading rheumatologists acknowledge it.
“Every week, a patient would tell me how certain weather conditions could trigger painful attacks. I wanted to find out more about this relationship, and dove into the scientific literature.”
Prof. Will Dixon
Professor of Digital Epidemiology, Honorary Consultant Rheumatologist
University of Manchester
Source: manchester.ac.uk“I believe there is a connection between weather and joint symptoms. Researchers have been unable to figure out just what matters most about the weather — or why there should be a connection.”
Dr. Robert Shmerling
Senior Faculty Editor, Harvard Health Publishing
Harvard Medical School
Source: health.harvard.edu“Patients often say they can tell when it’s going to rain based on how their joints feel. Humidity seems to be the biggest culprit, but we actually don’t know why.”
“They feel their body is a ‘weather machine’ that can predict when it’s going to rain or when a cold front is coming. With weather changes, we see increased viscosity of synovial fluid, creating more stiffness.”
“Is it temperature, humidity, barometric pressure, rain, some confluence of several of these, or changes in one or more of these that drives arthritis symptoms? It’s really complicated.”
Dr. Jeff Curtis
Harbert-Ball Endowed Professor of Medicine
University of Alabama at Birmingham
Source: creakyjoints.org“We see this all the time with our patients. People swear to their grave that the weather affects their arthritis. This is the first time we have nice, independent data that seems to correlate one with the other.”
Your personalized report
Less than a copay. No subscription. One-time payment.
A portion of every report goes to the Arthritis Foundation and RA research initiatives.
Every report also helps us refine our correlation models — the more data we analyze across patients, the more accurate everyone's results become.
Secure payment via Stripe. Your data is never sold or shared.
For your next appointment
Share it with your doctor
Your report is designed for doctor visits. Three simple steps.
Bring the PDF
Print it or show it on your phone. Page 2 has the executive summary your doctor can scan in 30 seconds.
Show your triggers
Open with: "My data shows [trigger] is my strongest correlation. Can we plan around that?" Data beats vague complaints.
Ask about timing
"If a pressure drop is forecast, should I adjust my meds or routine beforehand?" Your lag analysis gives you a warning window.
Includes full methodology and peer-reviewed citations. Even skeptical doctors respond well to patients who bring data.
Questions & answers
What wearable data do you support?
Apple Health (XML), Oura Ring (JSON), Fitbit (CSV), and any generic CSV with date, metric_name, and value columns.
How much data do I need?
30 days minimum. 90+ days is ideal for confident results.
Is my data secure?
Processed securely, used only for your report. Never sold or shared.
Does weather really affect RA?
The University of Manchester’s “Cloudy with a Chance of Pain” study confirmed individual-specific weather-pain relationships. It varies by person—that’s why personalized analysis matters.
What if no correlations are found?
We’ll tell you honestly. It may mean environment has less impact, or more data is needed.
Can I share this with my doctor?
We encourage it. Includes full methodology for your rheumatologist.
Ready to understand your triggers?
Upload your wearable data and get your personalized report within minutes.
Get your report