Who we are

We’re a team of patients, doctors, and engineers working together to build a better way to recover from complex illness.

By the community for the community

By the community for the community

By the community for the community

By the community for the community

Built by people who get it.


Paddy Monahan - Founder

"I’ve lived with long COVID since 2020. Like many of you, I’ve spent years trying to make sense of conflicting advice, experimenting with treatments, and searching for what actually helps. Circular Health is the tool I wish I had to help guide recovery."

Dr. David Kaufman M.D. - Clinical Lead

Dr. David Kaufman is one of the world’s leading experts in complex chronic illnesses, with over two decades of experience treating conditions like ME/CFS, long COVID, POTS, MCAS and other complex illnesses.

Barry Rafferty-Lynam - Head of Engineering

Barry is a health tech veteran with 10+ years of experience building secure healthcare systems. After going through a multi-year recovery from an acquired brain injury, he’s deeply committed to creating tools that truly support complex healing.

Our Story

Our Story

Our Story

Our Story

How it all started

There are effective treatments out there — but finding them is too slow, too fragmented, and too exhausting.

I’ve lived with long COVID since 2020. Like so many others, I spent years navigating conflicting advice, trying treatment after treatment, and searching for answers with limited support. What I found was that some things really do help — but most patients discover them by chance, not because the system makes it easy.


That’s why we started Circular Health.


We’re building a platform that helps surface what’s actually working — faster. By combining emerging research, expert clinical guidance, and real patient outcomes, we make it easier to understand which treatments are safe, promising, and worth considering.


To make sure what we build is both rigorous and genuinely useful, we’ve teamed up with Dr. David Kaufman — a world-leading expert in ME/CFS, long COVID, and related conditions — and a team of engineers and designers focused on making complex recovery simpler.


Circular Health exists because we’ve lived the problem — and we’re building the solution we wish had existed when we needed it most.


– Paddy

Frequently Asked Questions

Are you going to sell my data to big pharma?

Absolutely not. We deeply respect your privacy. You have a right to be part of a community and contribute your experiences without worrying that your data will be sold or misused. When you choose to share, it goes toward helping other patients — people who can learn from your experience, just like you’ve learned from theirs.

Who is Circular Health for?

Can I try the app?

Is Circular Health free?

Can I suggest features or treatments to include?

Who is Circular Health for?

We’re building Circular Health for anyone facing complex, hard-to-treat conditions — like long COVID, ME/CFS, MCAS, POTS, and more. If you’ve been left to figure it out on your own, this is for you.

Can I try the app?

Is Circular Health free?

Can I suggest features or treatments to include?

Are you going to sell my data to big pharma?

Are you going to sell my data to big pharma?

Absolutely not. We deeply respect your privacy. You have a right to be part of a community and contribute your experiences without worrying that your data will be sold or misused. When you choose to share, it goes toward helping other patients — people who can learn from your experience, just like you’ve learned from theirs.

Who is Circular Health for?

Can I try the app?

Is Circular Health free?

Can I suggest features or treatments to include?

Who is Circular Health for?

We’re building Circular Health for anyone facing complex, hard-to-treat conditions — like long COVID, ME/CFS, MCAS, POTS, and more. If you’ve been left to figure it out on your own, this is for you.

Can I try the app?

Is Circular Health free?

Can I suggest features or treatments to include?

Are you going to sell my data to big pharma?

Join our free health Community

Join patients from all over the world discovering effective treatments and taking steps towards recovery.

© Copyright 2025. All Rights Reserved by Circular Health

© Copyright 2025. All Rights Reserved by Circular Health

© Copyright 2025. All Rights Reserved by Circular Health

© Copyright 2025. All Rights Reserved by Circular Health