LR Longevity Research
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The U.S. averages 72 million people with chronic conditions leading to death — about 21% of your friends and family you could help by sharing this website with them.

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(72M Americans × 7.9 life-years each ≈ 569M U.S. life-years; scaled ×~20 for the rest of the world ≈ 11 billion.) Measured in life-years, this would stand among the largest health interventions in history.

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The world records — the most lives ever saved

The individuals credited with saving the most lives, ranked from most to least:

Lives-saved figures are “credited-with” estimates compiled from ScienceHeroes.com (Billions Served) and corroborating histories — attributions of scale, not precise counts.

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Longevity Research · Vol. I

Causal inference for the health span.

The analyses in this atlas address conditions that together account for 2.45 million annual deaths in the United States79.9% of all 2024 US deaths as catalogued by the CDC, including suicide, drugs, accidents and the 25 largest rare diseases (CDC: Leading Causes of Death; per-analysis count). This is the UCOD-priority figure; under contributing-cause attribution coverage rises to ~2.8 million. We tested these oracles on 15,774 NHANES adults (3,500 with a routed mortality-oracle condition) and we save an average of 7.9 life years per patient over the actual care — an upper-bound estimate. Pulmonary (COPD/IPF/PAH) +10.25 LY, Heart Disease (CVD) +9.28 LY, Metabolic Disease (T2D) +8.88 LY, Cancer (cause-specific mortality) +4.54 LY, and Brain (tumour / stroke) +3.65 LY. Non-mortality endpoints are reported for osteoarthritis from this data at 82% reduction in pain with the longevityresearch.ca oracle. See attached PDF report here.

We also tested the NHANES continuous dataset 1988–2018. Run across 21,344 patient-records (NHANES, ambulatory) routed to the 6 early-death (mortality-endpoint) oracles, the harness projects a mean gain of +8.5 life-years per person from the Bayesian Pareto-optimum set relative to the disease-specific standard-of-care baseline (mean usual-care baseline 24.2 LY → mean Pareto-optimum 32.7 LY; +181,626 life-years across the cohort). See report here.

“Pure mathematics is, in its way, the poetry of logical ideas.”

— Albert Einstein, obituary essay for Emmy Noether, The New York Times, 5 May 1935

Judea Pearl's structural causal calculus — backdoor adjustment, do-calculus, the algebra of counterfactuals — is the poetry here. Each analysis in this atlas is an attempt to write one stanza of it, in the language a clinician can actually act on.

“We don't rise to the level of our expectations; we fall to the level of our training.”

— Archilochus, Greek lyric poet, 7th century BCE

This means making the good interventions identified herein your habits — not aspirations — is what carries you to a long and healthy life. The atlas is a map of which interventions matter; daily training is what makes them load-bearing.

“All models are wrong, but some are useful.”

— George E. P. Box, Empirical Model-Building and Response Surfaces, 1987

Every causal model in this atlas is a deliberate simplification — a directed graph of a few nodes, an assumed mean cross-correlation, illustrative baselines — and so, read literally, each one is false. Box's point is that this is not a flaw to apologize for but the price of insight: a model earns its keep not by being true, but by being useful for a decision. The antithesis panels, the graded evidence, and the “combined figures are upper bounds” caveats throughout are this atlas trying to stay, in Box's phrase, alert to what is importantly wrong — to model the tigers, not the mice.

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Start here · A 2-minute orientation

Sixty percent of aging is optional. This Atlas is where you see the numbers.

The Bayesian Causal Atlas is a working portfolio of Pearl structural-causal-model dashboards — one per clinical domain. Each “oracle” lets you toggle real, sourced interventions and watch the modelled reduction in that disease’s endpoint update live, with cross-correlations between overlapping mechanisms removed so effects aren’t double-counted. The two explainers below, generated from the underlying research, are the fastest way in.

  1. Pick an oracle from the Atlas below — from all-cause mortality to a single condition.
  2. Toggle interventions and set doses. The endpoint, number-needed-to-treat, and E-value recompute as you go.
  3. Read the Pareto panel to see the smallest set of interventions that reaches most of the achievable benefit.
Watch · 8 min

Inactivity Fuels Aging

Video explainer · why movement is the dominant lever
Listen · 24 min

Sixty Percent of Aging Is Optional

Audio explainer · the case behind the Atlas

Both explainers were generated with NotebookLM from the Atlas’s own source material. They are an orientation, not medical advice; every figure in the dashboards is a modelled ceiling under stated assumptions.

Cross-Oracle Analysis · New

We computed the maximum modelled endpoint reduction for every disease we cover

For all diseases in the Atlas — including those without a death endpoint — we calculated the modelled best-case ceiling: the reduction in each disease's own endpoint when all applicable beneficial interventions are combined at full dose under that oracle's causal model, with cross-correlations removed. Ranked below: the ten highest modelled ceilings and the five lowest, across the 67 oracles reporting a comparable relative-reduction endpoint.

Highest modelled ceilings — top 10 of 67 comparable oracles
97.0%
Lowest modelled ceilings — where the evidence base constrains what is achievable
47.5%

Read these as ceilings, not promises: each is an upper bound under stated assumptions (every effect real, simultaneous, and additive after the model's correlation discount). Modelled quantities — not evidence-graded predictions, not medical advice.

View full report & complete list Download PDF
§ 02 — Atlas

The working portfolio.