What is the Longevity Research Library?

The Longevity Cities Research Library curates recent peer-reviewed studies on longevity, nutrition, exercise, sleep, and supplements. Each study is rated by evidence strength: Strong, Moderate, or Preliminary.

How are evidence levels determined?

Evidence levels are based on study type (meta-analysis, RCT, cohort study), sample size, journal impact factor, and reproducibility of findings.

Research Digest

Research Library

Peer-reviewed papers from top journals, summarized and graded by evidence strength. Updated Mon, Wed & Fri.

Evidence

9/111

Topic

May 31 – Jun 6, 2026

1 study

magnesium

Why Magnesium May Be a Hidden Key to Your Cellular Energy and Aging

Magnesium is usually seen as just a basic mineral your cells need. This review argues it does much more, acting like a switch that controls how well your mitochondria make energy. When magnesium levels drift over time, it may lower your cells' stress tolerance and push them toward aging. The authors link low magnesium to insulin resistance and metabolic problems.

Aging cell·Preliminary·Jun 1, 2026

May 24–30, 2026

2 studies

mitochondria

Why Your Mitochondria May Be Driving Aging and Chronic Inflammation

Scientists are zeroing in on mitochondria (the energy factories in your cells) as a main driver of aging, not just a casualty of it. When they break down, they leak signals that trigger chronic, low-grade inflammation and exhaust stem cells. This review highlights NAD+ depletion as a key bottleneck and looks at fixes like NAD+ boosters and mitophagy enhancers.

npj aging·Moderate·May 28, 2026

aging biomarkers

Scientists Find Universal Aging Signatures Across Mice, Monkeys, and Humans

Researchers pulled together over 11,000 gene activity samples from four mammal species to find what aging actually looks like at the molecular level. They found shared signatures across species, including two markers (CDKN1A and LGALS3) that also tracked with death risk and multiple diseases in UK Biobank data. Caloric restriction mainly slowed aging in mitochondrial pathways, while chronic diseases sped up inflammation-related aging.

Nature·Strong·May 27, 2026

May 3–9, 2026

1 study

Alzheimer's

Why Alzheimer's May Look Like a Viral Infection That Isn't There

This review proposes that Alzheimer's behaves like the brain fighting a fake viral infection. Old retrotransposons and leaked mitochondrial DNA trick immune cells into thinking there's a virus, triggering chronic inflammation and turning brain support cells into zombie-like senescent cells. The authors suggest that HIV drugs (NRTIs) and senolytics could one day target this hidden cascade. It's a fresh angle after years of failed amyloid-focused drugs.

Journal of molecular neuroscience : MN·Preliminary·May 4, 2026

Apr 26 – May 2, 2026

1 study

polyphenols

How Polyphenols From Tea, Berries, and Curcumin May Slow Aging Pathways

This review looks at how common plant compounds like resveratrol, EGCG from green tea, curcumin, and quercetin may influence aging. They appear to nudge the same pathways targeted by longevity drugs, including AMPK, sirtuins, and mTOR. They also feed gut bacteria that produce urolithin A, a compound linked to better mitochondrial health.

International journal of molecular sciences·Moderate·Apr 28, 2026

Apr 12–18, 2026

1 study

exercise

How Lactate From Exercise May Rewrite Your Genes to Slow Aging

When you work out hard, your muscles pump out lactate, the same stuff people used to blame for soreness. Researchers now think lactate acts as a messenger that tags proteins through a process called lactylation, linking your workout to long-term changes in how genes behave. This may explain how exercise protects mitochondria, calms inflammation, and keeps stem cells working across the brain, heart, and muscles. It's still early, and much of the evidence comes from animal and cell studies.

Ageing research reviews·Preliminary·Apr 15, 2026

Mar 29 – Apr 4, 2026

1 study

exercise

Muscle Mitochondria Stay Adaptable With Age, and Exercise Can Tap Into That

Aging muscles lose power partly because their mitochondria stop working well. But this study in mice and humans (30 donors aged 17 to 99) found that muscle mitochondria remain flexible enough to improve with exercise, even in old age. In mice, the functional gains from exercise depended on mitochondrial changes at structural and enzymatic levels. Mice lacking proper mitochondrial function in muscle couldn't benefit from exercise the same way.

Proceedings of the National Academy of Sciences of the United States of America·Moderate·Mar 30, 2026

Mar 15–21, 2026

1 study

fructose

How Excess Fructose May Damage Far More Than Just Your Liver

This review pulls together evidence showing fructose does more than add calories. It triggers a chain reaction: uric acid buildup, mitochondrial stress, and fat storage signals that affect the liver, kidneys, pancreas, gut, heart, lungs, and brain. The damage traces back to how fructose is processed differently than glucose, depleting cellular energy and driving inflammation. Animal and human studies both point to fructose overload as a metabolic disruptor across nearly every organ system.

Frontiers in bioscience (Elite edition)·Moderate·Mar 17, 2026

Mar 8–14, 2026

1 study

NAD+

A Newly Found Enzyme Breaks Down NAD+ Inside Mitochondria

Scientists identified a mitochondrial enzyme called SelO that breaks NAD+ into NMN and AMP. This reaction ramps up when mitochondria are working hard, essentially acting as a brake to prevent metabolic overload. It also plays a direct role in fat burning by linking up with fat oxidation enzymes. The mechanism is conserved from bacteria to mammals, suggesting it's been essential for a very long time.

Cell·Preliminary·Mar 9, 2026

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.

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