Research Digest
Research Library
Peer-reviewed papers from top journals, summarized and graded by evidence strength. Updated Mon, Wed & Fri.
May 10–16, 2026
3 studiesBlood NAD+ Levels Stay Flat With Age, Challenging Popular Aging Theory
One of the most repeated ideas in longevity is that NAD+ declines as we age, a story that helped make NR and NMN household names in the…
Combining Wearables With Blood Proteins Sharpens Biological Age Tests
Researchers built a new biological age model that combines blood protein data with wearable device readings.
Losing Your Sense Of Smell May Signal Faster Muscle Decline With Age
In adults aged 71 to 82, those who had lost their sense of smell lost grip strength faster over seven years.
Apr 12–18, 2026
2 studiesYour Blood Is Both a Mirror and a Driver of How Fast You Age
Scientists are finding that the stuff floating in your blood, proteins, metabolites, and tiny vesicles, doesn't just reflect your age.
Tracking Your 'Biological Age' Over Time May Predict Death Risk Better Than a Single Snapshot
In over 90,000 Dutch adults followed for nearly 14 years, people whose biological age ran ahead of their calendar age had a higher risk of…
Mar 22–28, 2026
1 studyMar 8–14, 2026
2 studiesFrailty Markers Predict 20-Year Death Risk in Older Chinese Adults
In about 4,000 older Hong Kong adults tracked for nearly two decades, frailty measures strongly predicted who would die and from what cause.
Fish That Age Fast Reveal Predictable 'Life Stages' in Aging
Scientists tracked African killifish behavior continuously from adolescence to death.
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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