The Vital Sign Nobody Measures

Grip strength predicts death more sharply than blood pressure — but whether you can build your way out of the risk is a harder, more interesting question than the headline admits.

Anti-ageing trial with 12 people 🧬

How Twelve People Made a Very Big Claim

An 83% drop in inflammation from twelve participants isn't stronger evidence than a 5% drop from five thousand — and the reason why will change how you read every supplement headline

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