How We Score
How we vet the research — transparency first
Rethinking senescent cells: When to stop them, when to keep them
This paper makes a compelling case that we've been thinking about senescent cells too simplistically. Not all aging cells are bad—some actually keep tissues healthy. Future therapies might work better …
Why Aging Cells Sometimes Help—and Sometimes Hurt—Muscle Repair
This paper explains why aging cells are a paradox in muscle repair: briefly helpful during healing, but harmful when they stick around. If this mechanism is correct, drugs that remove …
Rethinking Cellular Aging: Why One-Size-Fits-All Approaches to Senescence Are Failing
This paper doesn't report new discoveries—it's a thoughtful critique arguing that anti-aging researchers have been oversimplifying senescence and should embrace its complexity instead of chasing universal fixes. It's credible as …
Why Blue Zone Residents Live So Long: A Heart Health Perspective
This paper provides a useful framework connecting what makes Blue Zones special to specific cardiovascular mechanisms, but it's a literature summary, not proof. It's a good roadmap for future research, …
How Spermidine and Exercise Work Together to Keep Muscles Young
This paper makes a compelling case that spermidine and exercise activate the cell's cleanup system to preserve muscle, but the evidence is mostly from lab studies and animals—human proof is …
Can metformin protect aging hearts from stress? Early evidence in mice
This mouse study suggests metformin might protect aging hearts from stress damage, but it's too early to know if this will help humans. We need larger, replicated studies and human …
Do taste receptor genes influence weight and lifespan?
This study finds that genetic variants in taste receptors are more common in Sardinian centenarians and linked to body weight, suggesting taste genes may influence longevity—but the evidence is early …
DNA Methylation Clock Predicts Survival in 100-Year-Olds Better Than Brain Tests
A molecular aging clock in blood predicts survival in centenarians better than brain-health tests, suggesting aging happens in multiple ways—but this finding needs independent confirmation before we can trust it.
Vitamin K2 May Slow Aging in Worms by Protecting Mitochondria
This is promising early-stage research showing vitamin K2 can activate aging-control pathways in worms, but we need studies in mammals and eventually humans before knowing if it helps people live …
How light therapy reverses sun damage by changing skin cell signaling
This study explains how intense pulsed light—a popular cosmetic treatment—reverses sun damage at the cellular level by blocking collagen-breakdown pathways. While the mechanism makes sense and early data are encouraging, …
How a Traditional Chinese Herb Might Slow Aging Through Immune and Metabolic Pathways
This is credible mechanistic research showing a traditional herb affects aging pathways in yeast and flies, but it's early-stage: independent replication is needed, and there's no evidence it extends human …
Injectable Nicotinamide Riboside Shows Good Safety in Early Human Trials
Injectable nicotinamide riboside appears safe in early testing, but this is only a first small safety check. We need larger studies to know if it actually works or offers real …
Young Blood Plasma Exchange Shows Promise as Safe Treatment for Early Alzheimer's
This study shows that replacing older adults' blood plasma with young donor plasma is safe and can be done in humans—an important first step. But it's far too early to …
How naked mole rats rewired their proteins to live exceptionally long
This study reveals a fascinating clue—naked mole rats have evolved unusual protein structures linked to stress resistance—but it's a preliminary computational analysis that needs experimental follow-up to confirm the story …
A Peanut Compound Reverses Blood Stem Cell Aging in Mice
Researchers found a natural compound from peanuts that restored function to aging blood stem cells in mice—an encouraging lead that requires years of additional testing before potential human use. Don't …