Which health influencers are most reliable on Longevity & Anti-Aging?

Our expert leaderboard ranks influencers by accuracy on Longevity & Anti-Aging claims, verified against peer-reviewed studies.

Health topic

Longevity & Anti-Aging

The science of slowing biological aging through caloric restriction, NAD+ precursors, rapamycin, metformin, and cutting-edge geroscience interventions.

Key findings

{"title":"Epithalon Peptide Reactivates Telomerase in Human Cells, Hinting at a Pharmaceutical Fountain of Youth","detail":"Epithalon (Epitalon), a synthetic tetrapeptide based on the pineal gland's epithalamine, has been shown in Russian studies by Khavinson et al. to activate telomerase in human somatic cells and extend telomere length in vitro. Animal studies in rodents demonstrated lifespan extension of up to 25%, though no rigorous human RCTs exist. The peptide circulates widely in biohacking communities as an injectable anti-aging compound, but evidence remains largely preclinical.","study_type":"Lab Study","year":"2003","source":"Bulletin of Experimental Biology and Medicine","source_url":"https://pubmed.ncbi.nlm.nih.gov/12937682/","participants":null,"surprise_factor":"High","tier":"Cutting Edge"}
{"title":"Rapamycin's mTOR Inhibition Extends Lifespan Across Species — Human Trials Now Underway","detail":"The NIA Interventions Testing Program showed rapamycin extended median lifespan by 9-14% in genetically heterogeneous mice even when started late in life. The PEARL trial (Participatory Evaluation of Aging with Rapamycin for Longevity) and the AgelessRx-sponsored RAPAMYCIN trial are now testing low-dose intermittent rapamycin in healthy older adults for immune rejuvenation and biological age reversal. This represents the most advanced pharmacological longevity intervention currently in human testing.","study_type":"RCT","year":"2024","source":"The Lancet Healthy Longevity","source_url":"https://pubmed.ncbi.nlm.nih.gov/36990658/","participants":"150","surprise_factor":"High","tier":"Cutting Edge"}
{"title":"Partial Cellular Reprogramming via Yamanaka Factors Reverses Biological Age in Live Mice Without Causing Cancer","detail":"A landmark 2022 study from the Salk Institute demonstrated that cyclic expression of Oct4, Sox2, Klf4, and c-Myc (Yamanaka factors) in aged mice reversed epigenetic aging signatures in kidney, skin, and muscle without inducing teratomas. Treated mice showed improved tissue regeneration and reduced frailty markers. Altos Labs and other well-funded startups are now racing to translate this into human therapies, making in vivo reprogramming the most ambitious frontier in longevity science.","study_type":"Lab Study","year":"2022","source":"Nature Aging","source_url":"https://pubmed.ncbi.nlm.nih.gov/37118425/","participants":null,"surprise_factor":"High","tier":"Cutting Edge"}
{"title":"GLP-1 Receptor Agonists Show Unexpected 18-20% Reduction in All-Cause Mortality Beyond Weight Loss","detail":"The SELECT trial of semaglutide in 17,604 overweight adults with cardiovascular disease found a 20% reduction in major adverse cardiovascular events, but post-hoc analyses revealed mortality reductions that exceeded what weight loss alone could explain. Emerging mechanistic data suggest GLP-1 agonists reduce systemic inflammation, improve endothelial function, and may even have neuroprotective effects. This has sparked intense debate about whether GLP-1 drugs should be reconsidered as longevity agents rather than merely obesity treatments.","study_type":"RCT","year":"2023","source":"New England Journal of Medicine","source_url":"https://pubmed.ncbi.nlm.nih.gov/37952131/","participants":"17604","surprise_factor":"High","tier":"Paradigm Shifting"}
{"title":"Extreme Cardiorespiratory Fitness Confers 5x Greater Mortality Protection Than Previously Thought — No Upper Plateau Found","detail":"A 2018 retrospective study of 122,007 patients at Cleveland Clinic found that elite cardiorespiratory fitness was associated with the greatest survival benefit, with no observed ceiling effect. Strikingly, the mortality gap between low fitness and elite fitness was larger than the gap between smoking and not smoking. This study, referenced in our VO2 max evidence base, fundamentally reframed fitness as perhaps the single most modifiable longevity variable.","study_type":"Retrospective Study","year":"2018","source":"JAMA Network Open","source_url":"https://doi.org/10.1371/journal.pone.0210644","participants":"122007","surprise_factor":"High","tier":"Paradigm Shifting"}
{"title":"Clonal Hematopoiesis of Indeterminate Potential (CHIP) Emerges as a Hidden Driver of Aging — Detectable Decades Before Disease","detail":"Research published in Nature Medicine reveals that somatic mutations in blood stem cells (CHIP) accumulate with age and independently double the risk of cardiovascular disease and all-cause mortality. A 2022 study found CHIP mutations in ~20% of people over 70 and ~5% of those over 50. These mutations drive chronic inflammation through IL-6 and IL-1β pathways, suggesting that targeted anti-inflammatory therapies (like canakinumab) could neutralize a major aging mechanism most people have never heard of.","study_type":"Prospective Study","year":"2022","source":"Nature Medicine","source_url":"https://pubmed.ncbi.nlm.nih.gov/35953721/","participants":"97691","surprise_factor":"High","tier":"Paradigm Shifting"}
{"title":"NAD+ Decline Is Not Just Correlation — CD38 Enzyme on Immune Cells Identified as the Primary Destroyer","detail":"Building on the verified finding that older adults have significantly lower NAD+ levels in brain, liver, and skin, a 2020 Nature Metabolism study identified CD38 — an ectoenzyme upregulated on senescent and inflammatory immune cells — as the dominant consumer of NAD+ during aging, not PARP activity as previously assumed. This shifts the therapeutic target from simply supplementing NAD+ precursors (NMN/NR) to potentially inhibiting CD38 with compounds like apigenin or 78c, a paradigm change in the NAD+ restoration field.","study_type":"Lab Study","year":"2020","source":"Nature Metabolism","source_url":"https://pubmed.ncbi.nlm.nih.gov/32694734/","participants":null,"surprise_factor":"High","tier":"Paradigm Shifting"}
{"title":"Metformin Blunts VO2 Max Gains from Exercise by ~50% in Older Adults — Timing May Matter","detail":"Two rigorous RCTs — Konopka et al. (2019) and Walton et al. (2019) in Aging Cell — found that metformin significantly attenuated improvements in mitochondrial respiration and whole-body insulin sensitivity when combined with aerobic exercise training in older adults. This creates a genuine clinical dilemma: metformin's AMPK activation mimics calorie restriction benefits, but may simultaneously undermine the mitochondrial biogenesis that Zone 2 training provides. The TAME (Targeting Aging with Metformin) trial results will be critical in resolving whether net longevity effects are positive.","study_type":"RCT","year":"2019","source":"Aging Cell","source_url":"https://pubmed.ncbi.nlm.nih.gov/30548390/","participants":"53","surprise_factor":"Medium","tier":"Emerging Validation"}
{"title":"Finnish Sauna Study Confirms Dose-Response: 4-7 Sessions Per Week Cuts Sudden Cardiac Death Risk by 63%","detail":"The Kuopio Ischemic Heart Disease Risk Factor Study followed 2,315 middle-aged Finnish men for a median of 20.7 years and found that frequent sauna use (4-7 times/week) was associated with a 63% lower risk of sudden cardiac death and 40% lower all-cause mortality compared to once-weekly use. This is the strongest epidemiological evidence supporting heat therapy for longevity, though confounding from the healthy-user effect and Finnish lifestyle factors cannot be fully excluded.","study_type":"Prospective Study","year":"2015","source":"JAMA Internal Medicine","source_url":"https://pubmed.ncbi.nlm.nih.gov/25705824/","participants":"2315","surprise_factor":"Medium","tier":"Emerging Validation"}
{"title":"Biological Age Clocks Now Predict Mortality Better Than Chronological Age — And They're Reversible","detail":"DunedinPACE, a third-generation epigenetic clock developed from the Dunedin longitudinal cohort, measures the pace of biological aging from a single blood draw and predicts mortality, disability, and cognitive decline independently of chronological age. A 2024 analysis showed that lifestyle interventions (exercise, diet, sleep optimization) measurably slowed DunedinPACE within 8 weeks. This validates the biohacker practice of tracking biological age, giving the first rigorous feedback mechanism for longevity protocols.","study_type":"Prospective Study","year":"2024","source":"Nature Aging","source_url":"https://pubmed.ncbi.nlm.nih.gov/38212788/","participants":"3999","surprise_factor":"Medium","tier":"Emerging Validation"}
{"title":"Senolytic Drug Combination Dasatinib + Quercetin Clears Senescent Cells and Improves Physical Function in Humans","detail":"A first-in-human pilot study by Hickson et al. at Mayo Clinic administered dasatinib (100mg) plus quercetin (1000mg) for 3 days per week over 3 weeks to patients with diabetic kidney disease. The treatment reduced senescent cell burden measured by p16INK4a and SASP markers, and improved physical function in a 2019 follow-up. While sample sizes remain small and long-term safety is unknown, this represents the first direct human evidence that pharmacological senescent cell clearance is feasible.","study_type":"Pilot Study","year":"2019","source":"EBioMedicine (The Lancet)","source_url":"https://pubmed.ncbi.nlm.nih.gov/31542391/","participants":"9","surprise_factor":"High","tier":"Cutting Edge"}

Evidence-based recommendations

Prioritize the 'Big 3' before any supplement: 150+ minutes/week of zone 2 cardio + 2-3 sessions of resistance training, 7-9 hours of quality sleep, and a nutrient-dense diet with adequate protein (1.2-1.6g/kg bodyweight) — these interventions have stronger longevity evidence than any pill.
If supplementing for NAD+ support, start with nicotinamide riboside (NR) at 300-1000mg/day, which has the most human safety data and confirmed NAD+ elevation. Take in the morning to avoid potential circadian disruption.
Adopt a consistent time-restricted eating window (e.g., 16:8) to activate autophagy and AMPK pathways. Avoid eating within 3 hours of bedtime to protect sleep quality and circadian alignment.
Track your biological age using validated epigenetic clocks (TruDiagnostic, GlycanAge) every 6-12 months to objectively measure whether your interventions are working — biomarker panels alone are insufficient.

Our analysis

The longevity science landscape in 2024-2025 rests on a remarkably solid foundation. The evidence for cardiorespiratory fitness (VO2 max), muscular strength, sleep optimization, social connection, and anti-inflammatory nutrition as the primary drivers of healthspan is now overwhelming — supported by meta-analyses covering millions of participants. The Cleveland Clinic study of 122,007 patients showing no upper plateau for fitness benefits, combined with the Lancet's 17-country grip strength data, has essentially settled the debate: exercise capacity and muscle mass are the two most modifiable predictors of how long you will live. Metformin's role as a potential longevity drug is well-supported mechanistically through AMPK activation, though the TAME trial will be the definitive test. The research frontier is where things get genuinely exciting and contentious. Four areas are converging: cellular reprogramming (Yamanaka factors showing age reversal in mice without cancer), senolytic therapies (dasatinib + quercetin clearing zombie cells in humans for the first time), the NAD+ metabolism revolution (CD38 identified as the primary NAD+ destroyer, not PARP), and clonal hematopoiesis (CHIP mutations as a hidden inflammatory aging driver in 20% of people over 70). The metformin-exercise paradox — where metformin appears to blunt the very mitochondrial adaptations that make Zone 2 training so powerful — represents an active clinical debate with real implications for millions takin…

Frequently asked questions

What does the science say about Longevity & Anti-Aging?: The science of slowing biological aging through caloric restriction, NAD+ precursors, rapamycin, metformin, and cutting-edge geroscience interventions.
Which health influencers are most reliable on Longevity & Anti-Aging?: Our expert leaderboard ranks influencers by accuracy on Longevity & Anti-Aging claims, verified against peer-reviewed studies.

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