The anti-ageing molecule that wasn't 🧬

Taurine made mice live longer. And us? A 2023 headline, a 2025 reversal, and the one taurine claim that actually holds up.

Why the Mouse Lived Longer and You Probably Won't

A 12% lifespan gain in a lab mouse is thrilling, reproducible, and almost never transferable — and taurine is the newest name on a very long list.

The one stress supplement with real trials behind it — and the safety signal the gummies don't mention

Does ashwagandha actually work?

Every Ashwagandha Trial Seems to Work. That's the Problem.

Are you really magnesium deficient? 🧬 Most magnesium is bought on a hunch

Half of us eat too little — far fewer are truly short. Plus: which form to buy, and why the spray barely gets in.

You're Probably Not Magnesium Deficient. You Might Still Be Short.

Around half of us eat too little magnesium — yet no ordinary blood test can tell you whether you're truly short. That gap, between intake and proof, is the whole business model.

Who actually needs vitamin D? 🧬 Vitamin D keeps failing its big trials

VITAL and DO-HEALTH enrolled the wrong people. Plus: the one blood number — and why most of us shouldn't test it.

The Vitamin D Trials Didn't Fail. They Tested the Wrong People.

Three giant trials, three null results — and why that's the most reassuring news in the field, not the most damning.

You probably need less salt, not more 🧬

The £45 electrolyte habit, audited.The powder industry sells you sodium — the hard-outcome trials point the other way. Plus: is "structured" water anything?

The Salt Argument Is Really an Argument About Who You Are

Two camps, both right about their own person and wrong to generalise. The methodology fight, the sweat-sodium maths, and a decision map you can actually find yourself on.

Your ice bath is taxing your gains 🧬

The cold plunge fixes today, taxes tomorrow- Most plungers time the cold exactly wrong — and the £300 ring can't read inflammation.

The Cold Plunge Works by Cancelling the Adaptation You Came For

Less soreness doesn't buy more growth — the trials already tested the objection everyone raises. Here's the answer, and the decision map by training goal

The Blueprint Audit: What 70 Pills a Day Actually Buys

70 pills, three that earn their place - The famous ageing-clock number isn't the win — the boring biomarker underneath it is. We audited the stack. Read on

Bryan Johnson's Best Result Is the One He Doesn't Lead With

The DunedinPACE number is the headline. The bloods are the proof. Telling them apart is the whole game.

Wegovy cut heart attacks by 20% 🧬

17,604 people, no diabetes, 20% fewer cardiac events — and the test that just told us these aren't ageing drugs after all.