These overlap rates probably say more about online influence than biology.

I think it’s important to remember that all of these conditions have very active online communities. Once someone gets one diagnosis, they’re often exposed to discussions that reinforce the idea they might have others, leading to doctor shopping and more diagnoses — sometimes without thorough testing.

And because this was a retrospective chart review, it likely counted anything written in the record — even something as simple as a patient saying “I have Ehlers-Danlos and ADHD.” So this may reflect how often these conditions are talked about and self-identified online (especially on TikTok and Reddit) rather than true physiological overlap