About the author

Facilitator, researcher, and intensive AI user

I'm Paulo Nunes de Abreu — writing in English as Paul Nunesdea. IAF Certified™ Professional Facilitator, PhD in Management Science, and for the past three years, a daily user of AI tools who has started asking harder questions about what that means for the mind.

Paul Nunesdea

How this started

For more than two decades, I have been designing conversations that help organisations move from good intentions to meaningful action. From boardrooms and hospital auditoriums to international summits, I create dialogue spaces where complex ideas become shared direction, trusted relationships, and lasting impact.

My approach was shaped during my doctoral research at Lancaster University, where I earned a PhD in Management Science. There I discovered Soft Systems Methodology — a framework for navigating complexity that continues to inform how I reflect, reframe, and move forward with clarity.

When AI tools became genuinely capable — around 2022, 2023 — I adopted them enthusiastically. I use Claude, ChatGPT, Perplexity, and a handful of others every day. They've made me faster, broader, and in some ways more creative. But I also started noticing things.

My attention span felt shorter. I was sleeping less well. I had a vague sense that some of my thinking was being outsourced in ways I hadn't consciously chosen. As someone who has spent a career helping people think together more clearly, I found this unsettling — and worth investigating.

Brain Hygiene is my attempt to investigate it honestly, without anti-AI alarmism and without uncritical enthusiasm. I write for experienced professionals who are curious about these tools but also a little wary. People who want to use AI well, not just use it more.

That curiosity began with my own brain, but it is increasingly connecting with an older professional question. For more than two decades I have studied and practised what helps groups think together: how participation, space, process and shared memory shape the quality of a conversation. Brain Hygiene is where I explore the individual side of the same puzzle. What conditions help us think well — alone and together — when AI can answer, draft, record and remember almost instantly?

Background

IAF CPF™

Certified Professional Facilitator — International Association of Facilitators

PhD

Management Science, Lancaster University — specialising in Soft Systems Methodology

20+ years

Designing high-stakes meetings, leadership retreats, and multi-stakeholder dialogue across Europe

Health & AI

Health blogger and editor since 2005 — covering digital health, ethical AI governance, and healthcare innovation

What Brain Hygiene is for

This is a personal journal and a public experiment. I write about what I'm noticing, what I'm testing, and what I'm learning — about attention, sleep, judgement, and purpose in the age of AI. The audience I have in mind is the experienced professional: someone who has built real expertise over decades, who is genuinely curious about AI, and who suspects that the costs of these tools may not all appear on the invoice.

  • Honest over optimistic

    I report what I actually find, not what I hoped to find.

  • Slow over fast

    This is a journal, not a feed. Entries are published when they're ready.

  • Personal over prescriptive

    I write from my own experience. Your mileage will vary — and that's the point.

My professional work

For facilitation, dialogue design, and collaboration architecture, visit my main site.

Architecting Collaboration

Get in touch

I'm always interested in hearing from other professionals navigating these questions. If something here resonates — or if you disagree — I'd like to know.