Why it matters, entity
Human health and longevity
How long and how well people live.
- Depends on
- 2
- Depended on by
- 0
- Metrics
- 2
Neighbourhood: what depends on it (left), what it depends on (right)
- Candidate
- Hypothesized
- Mechanism supported
- Causally supported
- Established relation
Systems that would feel a shortage
Downstream: what depends on it
Nothing stored depends on this entity.
Inputs it cannot do without
Upstream: what it depends on
Economic output affects Human health and longevity4 evidenceMechanism supported
Human health and longevity depends on Economic output.
Mechanism
Higher output per person funds nutrition, sanitation, clinics, vaccines and education, and the relation between income and life expectancy across countries and time (the Preston curve) is one of the most documented in demography. The curve shifts upward over time, so part of the gain in longevity comes from knowledge and public health rather than income, and the effect flattens at high income.
Evidence
- documentPreston, S. H. (1975), The changing relation between mortality and level of economic development, Population Studies 29(2)doi.orgCross-country relation between income per person and life expectancy, and its upward shift over time.checked 2026-09-07
- documentWHO, Social determinants of healthwho.intIncome, education and living conditions as determinants of health outcomes.checked 2026-09-07
- metricgdp-per-person
- metriclife-expectancy
- Status
- mechanism_supported
- Reviewer confidence
- 0.80
- Stated strength
- 0.50
- Lag
- 365 to 3650 days
- Version
- curated_seed_v1
- Reviewed
- 2026-09-07
Confidence and strength are curated judgements recorded with the edge, not measured quantities.
Electricity system enables Human health and longevity2 evidenceHypothesized
Human health and longevity depends on Electricity system.
Mechanism
Stated, not yet evidenced here: electricity access allows refrigeration of vaccines and food, lighting in clinics, water pumping and a shift away from solid cooking fuels, all of which bear on mortality. The catalog carries both series; no study is attached.
Evidence
- metricelectricity-access
- metriclife-expectancy
- Status
- hypothesized
- Reviewer confidence
- 0.60
- Stated strength
- not stated
- Lag
- not stated
- Version
- curated_seed_v1
- Reviewed
- 2026-09-07
Confidence and strength are curated judgements recorded with the edge, not measured quantities.
Measured, from the catalog
Linked metrics
- Life expectancy at birthObserved
measures WLD
73.48yearsperiod 2024 - Under-5 mortality rateObserved
measures WLD
37.4deaths per 1,000 live birthsperiod 2024
Named on the edges that depend on it
Substitutes
No substitute is named for this entity on any stored edge.
Derived from curated edges
Bottleneck centrality
- Score
- 0.00
- Downstream entities
- 0
- Direct dependents
- 0
Sum over every entity downstream (within six hops) of the strongest path weight to it, where each edge weighs its stated strength divided by one plus its named substitutes. A graph statistic over curated edges, not an observation. Computed 2026-09-07 22:42 UTC.
Curated paths this entity is part of
Chains
Not part of a curated chain.
Names that resolve to this node
Aliases
- health
- longevity
- public health
slug human-health, updated 2026-09-07 22:42 UTC