My 2025 Longevity Biomarker Audit

I look healthy on the outside. My tests tell a more nuanced story. This is a straight account of my data, my blind spots, and what I’m fixing next.

Hi, I’m Shan. I run a science-first longevity company, Xandro Lab, in Singapore. Most of what I write here comes from what I’m learning while building inside the longevity ecosystem. Product work, research discussions, testing protocols, and the many conversations happening quietly behind the scenes.

Merry Christmas!

Longevity as a space is gaining momentum, but it’s still small. People are still figuring things out. I’ve been involved since 2023, and being close to the ecosystem has given me access to information, perspectives, and experimentation that I try to put to good use, both in products and in what I share here.

One question that comes up again and again in this space - What do your biomarkers actually look like?

So today, I’m sharing my own longevity test results. These tests were done with Dr. Hisham. To be clear, I’m still due for a proper consultation with him, and I’ll get a more refined medical summary once that happens.

What you’re reading here is my current understanding, built using the data I have and the tools available today, including current AI models. This is not medical advice. It’s a transparent look at where I stand, how I’m interpreting it, and what I plan to do next.

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What This Post Covers

To keep this readable, here’s how this is structured:

1. Why I started testing
   What pushed me to start measuring biomarkers instead of relying on how I felt.

2. What a longevity test actually includes
   A practical breakdown of what goes into a longevity test, beyond just “blood work.”

3. My longevity biomarkers
   A direct walk-through of my data. What looks good, what needs work, and what I’m watching closely.

4. A stricter longevity lens (Medicine 3.0)
   A short section on how some biomarkers look fine by normal standards, but need tighter targets if longevity is the goal.

5. Where I’m heading next
   Lifestyle, training, supplementation, and what I plan to measure going forward.

Let’s start.

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1. Why I Started Testing

I started testing because I was already working in the field of longevity.

I was building products that claim to help people live longer, recover better, stay sharper. And at some point, I felt uncomfortable selling solutions without knowing, for myself, whether any of this actually made a difference.

Almost anyone who’s spoken to me for more than a few minutes has heard me talk about diagnostics. Because the real question is simple. Do the interventions we talk about actually change anything?

Supplements.
Lifestyle changes.
Sleep.
Strength training.
Even things like stress management.

Do they move real markers in your body, or do they just make you feel like you’re doing something? That’s why I started measuring.

Blood tests.
DNA testing.
Sleep and recovery tracking using Whoop and Garmin.

There are deeper tests I haven’t done yet. Full-body MRI. Some advanced imaging. A few niche diagnostics. Those will come later.

For now, I wanted clarity on the basics. The fundamental biomarkers that actually tell you where you stand. It was about knowing my starting point, and knowing what to fix.