What is the Longevity Research Library?

The Longevity Austria 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

6/96

Topic

May 17–23, 2026

2 studies

circadian rhythm

Strong Daily Rhythms Plus Exercise Cut Death Risk by Two-Thirds

Adults whose sleep-wake cycles followed a strong daily rhythm and who got enough exercise had a 65% lower risk of dying from any cause over about 7 years. The combo also slashed cardiovascular death risk by 75%. Part of the benefit seemed to come from slower biological aging, hinting that consistent routines matter as much as the workout itself.

The journals of gerontology. Series A, Biological sciences and medical sciences·Moderate·May 21, 2026

vitamin D

Low Vitamin D Linked to Faster Artery Aging in Younger Adults

In over 2,000 young and middle-aged adults in China, higher vitamin D levels were linked to a lower chance of early vascular aging (stiffer arteries than expected for your age). The benefit kicked in below a threshold of about 18 ng/mL, with each 10 ng/mL bump tied to 19% lower odds. The link was strongest in men and people with overweight or obesity.

PloS one·Moderate·May 20, 2026

Apr 5–11, 2026

1 study

frailty

Frailty Doubles Death Risk in People With Heart and Metabolic Disease

Looking at five large studies across the US, UK, and China, people with heart or metabolic conditions who were frail had up to 132% higher risk of dying from any cause. Even being slightly weak (pre-frail) raised the risk by 21% to 66%. The link was strongest in people under 65 and those with lower body weight.

iScience·Strong·Apr 8, 2026

Mar 29 – Apr 4, 2026

1 study

cardiovascular disease

Your Brain May Slow Down Years Before a Heart Attack or Stroke

In older adults, thinking skills started declining 3 to 8 years before they had a major cardiovascular event like a stroke or heart failure. The drops showed up in memory, processing speed, and verbal fluency compared to people who stayed healthy. This hints that heart disease and brain aging share deep roots, and subtle cognitive changes might be an early warning sign.

JAMA network open·Moderate·Apr 1, 2026

Mar 15–21, 2026

1 study

cardiovascular health

How Mutant Blood Stem Cells May Quietly Fuel Heart Disease as You Age

As people age, blood stem cells accumulate mutations that cause certain cell lines to expand. This process, called clonal hematopoiesis, is now strongly linked to increased cardiovascular risk in older adults. The mutant blood cells appear to ramp up inflammation, accelerating atherosclerosis and heart failure. This review covers how these rogue clones interact with age-related inflammation and what future therapies might look like.

Acta pharmacologica Sinica·Moderate·Mar 16, 2026

Mar 8–14, 2026

1 study

caloric restriction

Caloric Restriction Slows Aging Most in the Heart and Metabolism

Cutting calories doesn't slow aging evenly across all organs. In a two-year trial, 185 adults were randomly assigned to caloric restriction or normal eating. The caloric restriction group aged about one year less in their cardiovascular and metabolic systems over 24 months. Kidney aging, however, didn't budge, and liver aging only slowed modestly at the two-year mark.

Clinical nutrition (Edinburgh, Scotland)·Strong·Mar 14, 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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