There's a number on your health report you've probably never seen

First issue, so two short things: why I’m the one writing this, and a number most health-conscious people have never measured.

Why I’m doing this

I spent more than a decade at Temasek learning to separate a real signal from a well-told story — early-stage venture is almost pure noise, and the entire job is building a filter you can trust under pressure.

A few years ago I ran my own health through that same filter and didn’t love what I found: a rigorous, battle-tested framework for every major professional decision, and almost none of it for the one asset that determines whether I’m functional at 65+.

That gap is why Halor exists — not another wellness brand, the same signal-versus-narrative discipline, pointed at Medicine 3.0 instead of tech bets. (The longer version is at halor.app/why if you want it.)

There’s a number on the report you’ve probably never seen.

A senior executive I respect — early 50s, runs marathons, BMI of ~22. The model for “successful professional health.” Last year’s DEXA scan: visceral fat in the 90th percentile for his age. Lean. And metabolically high-risk.

The literature calls this TOFI: Thin Outside, Fat Inside. Visceral Adipose Tissue — fat stored around your organs rather than under your skin. The published comprehensive review (Tchernof & Després, Physiological Reviews, 2013) describes VAT as biologically distinct from subcutaneous fat and associates it with inflammation and insulin resistance.

The scale can’t detect it. BMI can’t. A normal lipid panel often misses it. DEXA separates bone, lean mass, subcutaneous fat, and visceral fat as four distinct numbers — and VAT is the one most people in their 30s, 40s, and 50s have never measured.

The lever set most often discussed in the literature, if the number is high, is unglamorous: resistance training, Zone 2 base, sleep, energy balance. No biohack beats the basics. The framework most longevity practitioners apply to VAT starts with measurement — which a physician-ordered DEXA scan provides — before any intervention conversation.

What Halor has built

→ 15 chapters, 120+ lessons — the full Medicine 3.0 curriculum. Free on the app.

→ My Health Plan — structured physician prep for ASCVD, metabolic health, hormones, and cancer screening. Unlocks with a subscription.

→ Daily Protocols — exercise, sleep, and nutrition tracking built for longevity targets. $20/mo founding rate (price increases at launch).

If this clicked, the highest-leverage thing you can do is forward it to one operator-brain friend who’d find it useful. Paid clinics charge $20k+ to teach this. The newsletter is free.

That’s issue one — the filter, and the first number it surfaces. Every week here follows the same shape: a real signal from the research, stripped of the narrative built around it, translated into something you can act on with your own physician.

— Ben

I’m the co-founder of Halor — the healthspan co-pilot for people who want concierge-grade rigour without the concierge price tag. More at halor.app.

P.S. Reply and tell me your single biggest health question right now. The answers shape what gets written next.