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Contact
Contact us
Feedback, a wrong number in the lung capacity chart, a trainer bug, or a partnership idea — we read every message and usually reply within a few days.
What to include
- • What page you were on (paste the URL)
- • Your device + browser (e.g. iPhone / Safari)
- • Screenshots help a lot for timer bugs
⚠️ Medical emergency?
Don't email us — if you have chest pain, fainting, bluish lips, or severe sudden breathlessness, seek urgent care immediately. This site is a wellness game, not medical advice.