Dr Eoghan Colgan · Medical doctor
Being healthy shouldn’t be so hard. And it doesn’t have to be.
You don’t need restrictive diets or punishing workouts. I’m a doctor of 25 years who researches longevity. I’ve developed a simple approach that I follow myself, and now I’d like to share it with you.
If you’ve tried before and it didn’t last, it’s not your fault.
Modern life isn’t designed to support healthy choices. We’re wired to want the easy option and the richest food, because for most of human history that kept us alive. And there’s so much conflicting advice that it’s hard to know where to start.
So most people try harder, struggle, and stop.
The answer isn’t more effort. It’s a different approach.
Three things make it easy
1 · A change in mindset
Small, steady steps beat big efforts. You’re allowed to go slow, and small things really do add up.
2 · The right actions
Cut through the noise. Focus on the few actions with the biggest impact for the least effort: the 80:20 of sleep, nutrition and exercise. I call them the Vital 3.
3 · Making it part of your life
How to build the right actions into your everyday life, so they feel easy, manageable and last.
That’s what I research.
Hi, I’m Eoghan.
(That’s pronounced Owen, BTW!)
I’ve been a doctor for over 25 years. I was taught how to treat disease, but very little about how to prevent it. For a long time I was stuck in the same loop as everyone else: start, struggle, stop.
And throughout my career, I kept meeting healthy older people who had never “tried” at all. Surely there was an easier way. So I set out to find it.
I interview leading scientists in sleep, nutrition and exercise, I read the research, and I test everything on myself. The goal: to find what makes the biggest difference, for the least effort, and how to make it last.
And what happened next took me by surprise.
What happened
In the first five months, I lost 14 kg. And it kept going. Here’s where I was after one year:
April 2025
April 2026
I didn’t use any weight-loss drugs. I eat three big meals a day, plus snacks. I’ve never set foot in a gym. I don’t run. Nothing I do is hard, and none of it I’d give up.
And you can do it too.
One person’s story isn’t proof; the proof is in the research. But it showed me it can be done.
*VO2 max is my Apple Watch’s estimate.
Free guide · Start today
The Vital 3 Method
A doctor’s guide to lifelong health
- Why healthy living matters for you and your loved ones
- The actions that make a difference, not 100 biohacks that don’t
- The exact programme that helped me lose 14 kg in five months and feel in the best shape of my life
- Tips on using AI to help with your lifestyle changes
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Watch and read, free
Interviews with leading scientists, and the research explained in plain English.
I’ve scoured YouTube for channels that address longevity and this is the best.
Know your numbers
Wondering if yours are where they should be? Start here.
VO2 maxRead →
Resting heart rateRead →
Heart rate recoveryRead →
Blood pressureRead →
Grip strengthRead →
Waist‑to‑height ratioRead →
Go all in
Step-by-step courses, for when you’re ready.
Sleep Mentor
Can’t sleep? My doctor-led course uses CBT-i (cognitive behavioural therapy for insomnia), the treatment the guidelines recommend first for long-term insomnia.
See Sleep MentorStress-Free Longevity
Everything I do, step by step: the mindset, the vital actions and the science behind them, and how to make them part of your life.
Coming soon