Answers
Short answers to the questions people ask about wearables, sauna, sleep and tracking, each with the research behind it and what Gyroscope measures.
MCP Bridge
- How to track your nutrition with ChatGPT and Claude
Tell ChatGPT or Claude what you ate and Gyroscope logs it with calories, protein, carbs and fat, then keeps your history for every chat after.
- How to track every place you go
Gyroscope Places records every visit, trip and walk on your iPhone automatically, in a private timeline and map. Then ask ChatGPT or Claude about it.
- How to bring your Oura, Apple Health, Garmin and Whoop data into ChatGPT and Claude
Sync Oura, Apple Health, Garmin and Whoop into one Gyroscope account, merged into one history, then ask ChatGPT or Claude about all of it in one chat.
Wearables
- How to get all your wearables into one dashboard
Your watch, ring, scale, workout app, and phone can each hold a different part of your history. Gyroscope brings them into one dashboard.
- Why do my Whoop and Oura scores disagree?
WHOOP Recovery and Oura Readiness are different scores, not two readings of one standard measure.
- Why doesn't Oura write HRV to Apple Health?
Oura does not include HRV in the data categories it exports to Apple Health. Your HRV can exist inside Oura while the Apple Health HRV category has no Oura samples.
- How to export your Oura Ring data
Use the Oura Membership Hub for a complete personal data request, Oura on the Web for a selected date range, or Shareable Reports for a PDF summary.
- How to export Whoop data to CSV
In the WHOOP app, open More, App Settings, then Data Export. Confirm your email and select Create Export to receive a download link with CSV files.
- Can you wear Whoop and Oura at the same time?
Yes, you can wear WHOOP and Oura at the same time. Each device records through its own hardware and app, so neither device needs the other to operate.
- How to import Apple Health data into another app
For an ongoing import, install an app that supports HealthKit and allow it to read the health categories you choose.
- How to correlate your sleep with exercise, caffeine, or anything else you track
Put your sleep metric and the behavior you want to test on the same dated timeline, then compare days where both values exist.
Sauna
- Sauna questions, answered
Sauna is worth measuring because heat is a real cardiovascular load and the long-term findings follow a dose-response pattern.
- How long should you sit in a sauna?
Start with 5 to 10 minutes, build toward 10 to 20 minutes, and use 20 to 30 minutes only when you already tolerate the heat well.
- How often should you use a sauna?
Use 2 to 3 sessions a week as the middle frequency band or 4 to 7 sessions a week as the highest band studied in the major Finnish cohorts.
- Sauna before or after a workout?
Use the sauna after your workout. A randomized trial used a 15-minute post-exercise sauna and found better blood pressure and cholesterol results than exercise alone.
- Sauna vs cold plunge: which one should you do?
Choose sauna for heat exposure and the larger long-term cardiovascular evidence base. Choose cold based on your training goal.
- Does a sauna help muscle recovery?
Sauna has evidence for supporting endurance adaptation, but the research does not establish that it reduces muscle soreness.
- How many calories does a sauna burn?
No verified kilocalorie figure in the research supports using sauna as a calorie-burning strategy.
- Does a sauna help you sleep?
Yes, sauna can help sleep, but the most direct evidence is self-reported.
- What temperature should a sauna be?
Use about 90 to 93C (194 to 199F) as the dry-sauna range tested in short-term studies, not as a universal target.
- Infrared vs traditional sauna: what is the difference?
Infrared sauna uses radiant panels at a lower wall temperature, while traditional sauna heats the room air and sauna surfaces.
- Is it safe to use a sauna every day?
Yes, daily use falls within the 4 to 7 sessions-a-week band studied in generally healthy adults.
- Does a sauna lower your blood pressure?
Yes, blood pressure can fall below baseline after a sauna, but it rises during the heat exposure.
- Does a sauna actually detox your body?
No, sauna does not detox your body in the broad way marketing claims. Your liver and kidneys do the overwhelming share of clearance.
- Should you use a sauna when you are sick?
No, skip the sauna when you have a fever, and be conservative with symptoms below the neck.
- Does sauna use improve your HRV and resting heart rate?
No study in the research shows that sauna raises HRV or lowers resting heart rate.