About Off Beat.
I was a recreational long-distance runner when my heart decided to go its own way.
The nurses said I was the youngest patient on the ward with AFib. I didn't fit the profile. Turns out, a lot of us don't.
My story
My first AFib episode arrived out of nowhere. I was fit, otherwise healthy, and had no idea what was happening. When I ended up in hospital, the doctors and nurses remarked that I was the youngest patient they had seen with AFib on the ward. It kept happening on subsequent visits. The same surprised looks. The same comment.
There are clearly people like me out there — young, active, no underlying conditions — who simply don't fit the standard AFib profile. After diagnosis I joined online communities for young people with AFib and started reading. Everyone was asking the same questions. The answers were buried across hundreds of threads. Nothing added up to a clear picture.
So I started gathering data. I built a survey, put it in front of the community, and began visualising the responses. Patterns emerged quickly. Fit, active people with lone AFib had a measurably different experience to those with underlying conditions. The data told a story that nobody had told before, because nobody had looked.
After my second episode, I saw a leading electrophysiologist. He confirmed what the data was already suggesting: my heart is structurally normal, my stroke risk is very low, and my AFib is almost certainly vagally-mediated in the context of distance running. The prognosis was reassuring. I went back to running.
"Your condition is very manageable and not life-shortening."
What I couldn't find anywhere was a community, a data set, or a piece of writing that reflected the experience of being young, fit, and suddenly living with an unreliable heart. Off Beat is my attempt to fill that gap. A survey. A growing evidence base. A community of people who get it.
What we believe
Lone AFib in otherwise fit, healthy people is a distinct phenotype — and it deserves its own evidence base. The standard narrative doesn't fit us. Patient-reported data, shared honestly, can shift the conversation.
The data
Our survey has collected 29 responses from 7 countries. The findings are directional — not statistically conclusive — but the patterns are consistent. The more responses we collect, the clearer the picture becomes. All data is anonymised before analysis. See our privacy policy →
The book
We are working toward a patient-led book about AFib in fit, healthy people — a resource that this community deserves but has never had. Written from the inside, grounded in community data, and told through real stories. If you would like your experience to be part of it, get in touch or submit via the Community page.
Support the project
Off Beat is independent, self-funded and has no pharmaceutical or advertiser backing. If the data or community has helped you, consider buying Will a coffee ☕ to support the research effort.
Contact
General: hello@offbeat.community
Press & collaboration: press@offbeat.community
Data withdrawal: data@offbeat.community
Off Beat is not a medical service. Nothing on this website constitutes medical advice. Always consult your cardiologist or electrophysiologist.