Here's a gift: Cambridge-backed online test to validate your brain protocol

Hi Phoenix friend,

First, a thank you.

You have been following this newsletter, reading the research, and taking your APOE4 risk seriously. That is not nothing. So for this one, I wanted to give something back.

If you carry APOE4, you probably already work at this.
Better sleep.
Cleaner diet.
More exercise.
Maybe supplements and bloodwork too.

But there is one question all that effort cannot answer on its own: is any of it actually protecting your brain?

We partnered with PREMAZ, a digital memory test developed with researchers at the University of Cambridge. It is the kind of test people normally pay for, and inside Phoenix it lives behind paid membership.

This time we are opening it up. To as many APOE4 carriers as we can reach, you included. Free, no membership needed.

Why give away something that usually costs money?
Two reasons.
A community our size has leverage a single person never does, which is how I negotiated this access in the first place.
And Phoenix is running a joint study on APOE4 cognition with PREMAZ and Cambridge, so every test taken makes the research stronger.
Opening the doors helps the science and helps you in the same move. Easy call.

Here is what makes it worth your ten minutes.

It measures the quality of your memory, not just whether you remembered.

Most cognitive tests ask whether you remembered something. PREMAZ measures how precisely you remembered it, on a continuous scale. That sensitivity is what lets it pick up subtle changes while standard tests still look normal.

It is backed by real research.

It is built on more than ten years of University of Cambridge work and is already used in clinics and research settings across the UK and US. In published studies, lower scores were linked to the earliest Alzheimer's-related brain changes, and to faster cognitive change over a five-year period.

Ten minutes, your own device, a baseline you keep.

The test takes about 10 minutes at home. You get a report you can download. Take it again in a few months (I’d recommend 3 months) and you start to see your own trend, instead of guessing.

You also help the whole community.

By taking it, you contribute to a joint Phoenix and University of Cambridge study on cognition in APOE4 carriers. Your data is fully anonymized and never personally identifiable. You are helping build evidence that does not exist yet for people like us.

👉 Take the PREMAZ test (free) →

How to go further (this is the part most people miss).

Have you ever wondered if the interventions you are spending so much time (and money!) on are actually working?

A cognitive baseline tells you where you stand today.
The harder question is what actually moves it.
And here is the trap most people fall into: no single number can answer that.
Not one memory score, not one Cholesterol or ApoB result, not one sleep score.
Lean too heavily on any one metric and it will eventually mislead you.
The truth only shows up when you watch several move together.

That is the whole point of Phoenix.

We bring in your blood biomarkers, your wearable data like sleep and HRV, and a quick daily check-in, how your energy feels, how you rate your sleep, how heavy the brain fog is, and we correlate all of it with our Phoenix AI specifically trained on APOE4 data.

The hard numbers and how you actually feel, in one place, so you can see whether something is working instead of guessing one variable at a time.

It is built for stacking experiments over time, too.
Members take the PREMAZ test, about three months apart, so they can track their progress: a clear before/after picture.
Do that across sleep, supplements and training and you stop guessing for good.

And you are not experimenting alone. You also see what is working for other APOE4 carriers who share your health profile, so every member's data makes the next person's decisions smarter.
A test like PREMAZ is at its most useful when it sits inside a system like that.

The test is yours either way. But if you have been waiting for a reason to stop guessing and start measuring, this is a good one.

See what Phoenix could show you →

Thank you for being here. Take your baseline, and tell us what you think.

Cheers,
Kevin

PREMAZ is a research and tracking tool, not a diagnosis. It does not diagnose or treat any condition. Talk to your physician about your cognitive health.

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How boring…
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