Evidence table
What the research actually says
The longevity market sells certainty it has not earned. This table grades popular interventions by the strength of human evidence that they support a longer, healthier life, so you can spend your effort and money where the science is strongest and skip the rest with a clear conscience.
Strong - Robust, consistent human evidence.
Moderate - Good human evidence, not yet definitive.
Emerging - Promising but early or mixed in humans.
Weak / hype - Little or no human longevity benefit for most people.
Category
Evidence
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marks items that require a prescription or clinical supervision. Grades describe evidence strength, not a recommendation for you.
Sources
- Physical activity fact sheet World Health Organization, 2024
- Tobacco fact sheet World Health Organization, 2023
- Primary Prevention of Cardiovascular Disease with a Mediterranean Diet (PREDIMED) Estruch et al, New England Journal of Medicine, 2018
- CALERIE: effects of caloric restriction in humans Kraus et al, Lancet Diabetes & Endocrinology, 2019
- Live Well: healthy living advice NHS, 2024
Last reviewed: 2026-07-16