Everspan organizes published research for informational purposes only. This is not medical advice. Consult a healthcare provider before starting any intervention.
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Science Library

Research Studies

Key clinical studies across longevity interventions — filter by study type, evidence strength, and intervention.

Type
Evidence
33 of 33 studies6 Observational14 RCT6 Meta-Analysis7 Animal

Association of Cardiorespiratory Fitness with Long-term Mortality among Adults

Kokkinos P, et al. · 2022 · JAMA Network Open

Observational

Higher cardiorespiratory fitness was linearly associated with lower all-cause mortality; the highest fitness group had 4× lower risk than the least fit.

80% lower mortality in highest vs lowest fitness quintilen=750,302
PubMed

Nicotinamide Mononucleotide Increases Muscle Insulin Sensitivity in Prediabetic Women

Yoshino M, et al. · 2021 · Science

RCT
NMNmoderate

NMN supplementation (250 mg/day) increased skeletal muscle insulin sensitivity and signaling in postmenopausal women with prediabetes.

Significant improvement in insulin sensitivityn=2510 weeks
PubMed

VITAL Trial: Vitamin D and Omega-3 Fatty Acids for Prevention of Cancer and CVD

Manson JE, et al. · 2019 · New England Journal of Medicine

RCT
Omega-3strong

Omega-3 supplementation (1 g/day) reduced major cardiovascular events by 28% in those not consuming fish regularly.

28% reduction in CV events (fish-intake subgroup)n=25,8715 years
PubMed

CALERIE-2: Sustained Caloric Restriction Improves Cardiometabolic Risk Factors

Kraus WE, et al. · 2019 · Lancet Diabetes & Endocrinology

RCT

25% caloric restriction over 2 years significantly improved cardiometabolic risk factors including blood pressure, lipids, and insulin resistance in non-obese adults.

10% reduction in cardiometabolic risk scoren=2202 years
PubMed

Dasatinib plus Quercetin Reduce Senescent Cells in Humans — Pilot Study

Kirkland JL, et al. · 2019 · EBioMedicine

RCT

A 3-day course of dasatinib + quercetin reduced senescent cell burden in adipose tissue by 50% and improved physical function metrics in older adults.

50% reduction in senescent cell markersn=93 days
PubMed

Curcumin Supplementation and Inflammatory Biomarkers: Systematic Review & Meta-Analysis

Tabrizi R, et al. · 2019 · Phytotherapy Research

Meta-Analysis
Curcuminmoderate

Curcumin supplementation significantly reduced CRP and IL-6 levels in adults, particularly in those with chronic disease and higher baseline inflammation.

0.55 mg/L CRP reductionn=1,084
PubMed

Zone 2 Training Improves Lactate Clearance and Metabolic Flexibility

San-Millán I, Brooks GA. · 2018 · Journal of Applied Physiology

Observational

Lactate threshold training at Zone 2 intensity uniquely improves mitochondrial lactate oxidation and metabolic flexibility in trained and untrained individuals.

n=65
PubMed

Higher Dietary Spermidine Intake Associated with Lower Mortality in a Prospective Cohort

Kiechl S, et al. · 2018 · American Journal of Clinical Nutrition

Observational
Spermidinemoderate

Highest dietary spermidine intake was associated with significantly lower all-cause mortality and reduced cardiovascular risk over 20 years.

40% lower cardiovascular mortality in highest tertilen=829
PubMed

Fisetin is a Senotherapeutic that Extends Health and Lifespan

Yousefzadeh MJ, et al. · 2018 · EBioMedicine

Animal
Fisetinmoderate

Fisetin reduced senescent cell burden in multiple tissues, improved physical function, and extended median and maximum lifespan in aged mice.

10% median lifespan extension
PubMed

Memory and Brain Amyloid and Tau Effects of a Bioavailable Curcumin in Non-Demented Adults

Small GW, et al. · 2018 · American Journal of Geriatric Psychiatry

RCT
Curcuminmoderate

Bioavailable curcumin (Theracurmin 90 mg twice daily) significantly improved memory and attention in non-demented adults over 18 months.

28% improvement in memory scoresn=4018 months
PubMed

Rapamycin Treatment Improves Cardiac Structure and Function in Middle-Aged Dogs

Urfer SR, et al. · 2017 · Aging

RCT
Rapamycinmoderate

Short-term rapamycin improved cardiac function (ejection fraction) in middle-aged pet dogs without significant adverse effects.

10% improvement in cardiac ejection fractionn=4010 weeks
PubMed

Caloric Restriction Reverses Epigenetic Aging in Rhesus Monkeys

Mattison JA, et al. · 2017 · Nature Communications

Animal

30% caloric restriction started in adult and old rhesus monkeys delayed age-associated disease onset by 50% and reduced mortality risk.

50% reduction in age-related disease onsetn=120
PubMed

High-Intensity Interval Training Reverses Age-Related Mitochondrial Decline

Robinson MM, et al. · 2017 · Cell Metabolism

RCT
HIITstrong

HIIT reversed many age-related differences in muscle mitochondrial function and ribosomal capacity, with older adults gaining as much as younger adults.

69% increase in mitochondrial capacity in older adultsn=7212 weeks
PubMed

Targeting Aging with Metformin (TAME) Trial: Rationale and Study Design

Barzilai N, et al. · 2016 · Annals of the New York Academy of Sciences

RCT
Metforminstrong

Landmark trial designed to test metformin as the first drug targeting aging as a disease in non-diabetic older adults.

n=3,0006 years
PubMed

Nicotinamide Riboside Safely Elevates Whole Blood NAD+ by 40–60%

Trammell SAJ, et al. · 2016 · Nature Communications

RCT
NMN/NRmoderate

Oral NR supplementation dose-dependently elevated whole blood NAD+ levels in healthy adults without clinically relevant side effects.

40–60% NAD⁺ increasen=126 weeks
PubMed

Association of Metformin Use with Cancer Incidence and Mortality

Gandini S, et al. · 2014 · Oncology Reviews

Meta-Analysis
Metforminstrong

Metformin use associated with significantly reduced cancer incidence and cancer-related mortality in diabetic patients.

31% lower cancer mortalityn=65,540
PubMed

mTOR Inhibition Improves Immune Function in the Elderly

Mannick JB, et al. · 2014 · Science Translational Medicine

RCT
Rapamycinstrong

Low-dose mTOR inhibitor (RAD001) improved response to influenza vaccine by 20% in elderly volunteers, suggesting immune rejuvenation.

20% improved vaccine responsen=2186 weeks
PubMed

Creatine Supplementation and Sarcopenia in Older Adults: A Systematic Review

Devries MC, Phillips SM. · 2014 · Journal of Nutrition, Health & Aging

Meta-Analysis
Creatinestrong

Creatine supplementation significantly preserved lean muscle mass and functional strength in older adults (>55 years), attenuating age-related sarcopenia.

Significant lean mass preservation vs. placebon=357
PubMed

Metformin Extends Lifespan and Improves Healthspan via Dietary Restriction-Like Mechanisms

Martin-Montalvo A, et al. · 2013 · Nature Communications

Animal
Metforminmoderate

Metformin extends mouse lifespan by 5.83% via AMPK activation and oxidative stress reduction, mimicking caloric restriction.

5.83% lifespan extension
PubMed

Sleep Drives Metabolite Clearance from the Adult Brain

Xie L, et al. · 2013 · Science

Animal

Sleep activates the glymphatic system, increasing cerebrospinal fluid flow and clearing Alzheimer's-related amyloid-beta by 61% more than waking.

61% greater amyloid clearance during sleep
PubMed

Dietary Magnesium Intake and Mortality: Prospective Cohort Study

Chiuve SE, et al. · 2013 · American Journal of Clinical Nutrition

Observational
Magnesiummoderate

Higher magnesium intake was inversely associated with all-cause mortality and cardiovascular disease; the effect was strongest for sudden cardiac death.

34% lower sudden cardiac death risk in highest vs. lowest quartilen=88,375
PubMed

Metformin versus Other Antidiabetic Drugs and Cardiovascular Outcomes

Roumie CL, et al. · 2012 · Archives of Internal Medicine

Observational
Metforminmoderate

Metformin monotherapy associated with lower all-cause mortality and cardiovascular events compared with sulfonylurea monotherapy.

24% lower all-cause mortalityn=24,752
PubMed

Berberine in Type 2 Diabetes: A Meta-Analysis of 27 Trials

Yin J, et al. · 2012 · Evidence-Based Complementary and Alternative Medicine

Meta-Analysis
Berberinestrong

Berberine reduced HbA1c by 0.9%, fasting glucose by 1.13 mmol/L, and postprandial glucose by 2.38 mmol/L — comparable to metformin.

0.9% HbA1c reductionn=2,569
PubMed

Resveratrol Supplementation in Adults with Metabolic Syndrome: A Randomized Trial

Bhatt JK, et al. · 2012 · Nutrition

RCT
Resveratrolmoderate

Resveratrol (500 mg/day) improved insulin sensitivity and reduced fasting glucose in overweight adults with metabolic syndrome.

Significant fasting glucose reductionn=6612 weeks
PubMed

Magnesium Supplementation Improves Insulin Resistance in Overweight Adults

Mooren FC, et al. · 2011 · Diabetologia

RCT
Magnesiummoderate

Daily magnesium supplementation (365 mg) significantly improved fasting glucose, insulin sensitivity, and blood pressure in overweight, non-diabetic adults.

Significant HOMA-IR improvementn=526 months
PubMed

Endurance Exercise Mediates Changes in Mitochondrial Biogenesis and Oxidative Capacity

Lira VA, et al. · 2010 · Journal of Physiology

RCT

Moderate-intensity endurance training significantly increased mitochondrial biogenesis markers (PGC-1α) and oxidative enzyme capacity in skeletal muscle.

2.1× increase in PGC-1α expressionn=226 weeks
PubMed

Omega-3 Fatty Acids and Telomere Length in Adults

Farzaneh-Far R, et al. · 2010 · JAMA

Observational
Omega-3moderate

Higher blood omega-3 levels were associated with significantly slower telomere attrition over 5 years in patients with coronary heart disease.

32% slower telomere shortening in highest quartilen=6085 years
PubMed

Rapamycin Fed Late in Life Extends Lifespan in Genetically Heterogeneous Mice

Harrison DE, et al. · 2009 · Nature

Animal
Rapamycinstrong

Rapamycin started at 600 days of age extended mouse median lifespan by 28% in females and 23% in males — even when started late in life.

28% lifespan extension (females)
PubMed

Sleep Duration and Mortality: A Meta-Analysis of 16 Prospective Studies

Gallicchio L, Kalesan B. · 2009 · Journal of Sleep Research

Meta-Analysis

Both short (<6h) and long (>9h) sleep duration were associated with significantly increased all-cause mortality; optimal sleep was 7–8 hours.

1.3× higher mortality with <6h sleepn=1,382,999
PubMed

Spermidine Supplementation Extends Lifespan via Autophagy Induction

Eisenberg T, et al. · 2009 · Nature Cell Biology

Animal
Spermidinemoderate

Exogenous spermidine extended yeast, fly, and worm lifespan by up to 30% via induction of autophagy; effects were abrogated by autophagy inhibition.

Up to 30% lifespan extension
PubMed

Small Molecule Activators of SIRT1 as Therapeutics for Metabolic Disorders

Milne JC, et al. · 2007 · Nature

Animal
Resveratrolmoderate

Resveratrol activates SIRT1, improving insulin sensitivity and extending lifespan in obese mice fed a high-fat diet.

24% improved mitochondrial capacity
PubMed

Berberine Activates AMPK and Reduces LDL Cholesterol

Kong W, et al. · 2004 · Nature Medicine

RCT
Berberinestrong

Berberine reduced LDL cholesterol by 25% and triglycerides by 35% in patients with hyperlipidemia via upregulation of LDL receptor expression.

25% LDL reduction, 35% triglyceride reductionn=9113 weeks
PubMed

Creatine Supplementation and Muscle Strength: Meta-Analysis of 22 RCTs

Rawson ES, Volek JS. · 2003 · Journal of Strength and Conditioning Research

Meta-Analysis
Creatinestrong

Creatine supplementation combined with resistance training increased bench press strength by 14% and squat strength by 8% compared to exercise alone.

14% greater strength gains vs. placebon=694
PubMed