Research Library
Peer-reviewed papers from top journals, summarized and graded by evidence strength. Updated Mon, Wed & Fri.
1 paper added this week319 in the library
| Study | Evidence | Type | n | Journal | Date |
|---|---|---|---|---|---|
| Mar 16–22, 20261 study | |||||
| Frail From 45: Risk of Death More Than Three Times HigherFrailty in midlife carries a heavy risk. | Moderate | Journal Article | 2,104 | The Journal of frailty & aging | |
| Mar 9–15, 20261 study | |||||
| Dancing After 60: Fitter Bodies After Just Eight WeeksDance mixes movement, mental effort and company. | Moderate | Journal Article | 1,112 | Journal of the American Medical Directors Association | |
| Mar 2–8, 20261 study | |||||
| Vitamin K2 Does Not Speed Muscle Recovery After Weight TrainingSore, weak muscles can linger for days after a tough strength session. | Moderate | Journal Article | 80 | Medicine and science in sports and exercise | |
Mar 16–22, 2026
1 studyMar 9–15, 2026
1 studyDisclaimer: 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.
Common questions
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.
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