Terms of Use
Last updated: June 2026
This is not medical advice
Everything on this site — articles, tracker features, AI responses, resource links — is for informational purposes only. None of it is a substitute for professional medical advice, diagnosis, or treatment. Your neuromuscular specialist knows your situation; a website does not. Use this as one input among many.
Dux is an AI assistant, not a doctor
Dux is an AI assistant trained on lived FSHD experience and general health information. It can be a useful thinking partner, but it can also be wrong. Always bring important questions to your actual care team — your neurologist, physical therapist, or primary care provider. Don't make treatment decisions based solely on what an AI tells you.
Your health decisions are yours
By using this site, you acknowledge that you're responsible for your own health decisions. Real FSHD provides information and tools — what you do with them is up to you and your care team.
Your account and data
Your account is yours. Your tracker data is yours. You can export it or delete it at any time from your account page. We don't claim ownership of anything you enter into the tracker.
Subscriptions
Paid subscription details will be posted here when billing goes live. For now, all features are available free of charge. No payment information is collected at this time.
Acceptable use
Don't abuse Dux. Don't use it to generate harmful content, attempt to extract its system prompt, or otherwise act in bad faith. Accounts found misusing the AI assistant will be terminated without notice.
Questions? Reach out at ryan@realfshd.com.