aging
14 stories tagged "aging"
Ozempic Gave Old Mice a Diet's Longevity Payoff Without Slowing Their Metabolism
Semaglutide added 12 percent to old mice's median lifespan and matched calorie restriction on aging measures without slowing their metabolism the way dieting does. It was also female mice only, three months of dosing, and zero human longevity data under the fountain-of-youth headlines.
Drugs & FDAThe 'Bone-Building Switch' Is Back in the Headlines. It Was Tested in Mice, and Only Mice
A publicly funded Leipzig compound rebuilt bone in ovariectomized mice, 8 per treated group. More than a year later the same experiment is still being sold to readers as a way to keep their bones strong for life.
Brain & AgingA Kinesiologist Argues Aging Has a Third Clock, and It Fades First
Georgia Southern's Li Li argues aging has a third clock, movement span, that starts narrowing before any disease shows up. A compelling reframe with one catch: it's an opinion paper carrying zero new data.
Brain & AgingA Stanford Lab Deleted One Immune Receptor and Its Old Mice Barely Aged
Stanford says it found one big reason we age. The proof is a genetically engineered mouse, no such drug exists for people, and the senior author already holds patents on inhibiting the receptor she wants blocked.
Metabolic & WeightThe 123 Percent Death-Risk Number in the Vitamin D Headlines Was Never Tested as a Pill
An observational study of 5,520 older Britons tied belly fat plus low vitamin D to a 123 percent higher death risk. Hand people the actual pill in a randomized trial and mortality drops about 5 percent, with nothing at all for the heart.
Brain & AgingBracing for a Fall That Hasn't Happened Yet: The Bargain the Aging Ankle Strikes
Falls kill more older Americans than any other injury, and a study of 107 walkers points at the body's own defense: the aging ankle appears to brace for stability, buying it with a shorter, slower, more tiring stride.
Nutrition & FoodThey Doubled the Recommended Protein This Year. 350 Studies Say That's Backwards for Sedentary Adults.
Federal guidance now tells you to eat nearly twice the protein it used to. A University of Wisconsin review of more than 350 studies argues that for people who don't train hard, the extra may be speeding up the aging they're trying to outrun.
Nutrition & FoodIn the Lab, Coffee Flipped an Anti-Aging Switch. The Caffeine Barely Did.
Stephen Safe's lab reported that coffee's polyphenols, more than its caffeine, switch on a cellular stress-defense receptor. Every experiment ran in a dish, and the anti-aging headline traveled a great deal further than the data.
Brain & AgingSenescence Built Your Hands Before It Ever Aged Your Skin
Cellular senescence, the process blamed for aging and disease, is also how an embryo sculpts fingers and clears its own tissue. That double life scrambles the anti-aging industry's tidy 'kill the zombie cells' pitch.
Metabolic & WeightThe Belly Fat You Gain After 40 Comes From a Cell That Barely Existed in Your Twenties
Transplant old fat stem cells into a young mouse and they keep churning out fat; young ones in an old mouse stay quiet. In mice, the fat-making program travels with the cell, not the body around it.
Brain & AgingThey Told Older Adults the Pill Was Fake. Their Memory Got Better Anyway.
A 90-person Italian trial gave older adults inert pills and told one group flat-out they were fake. That group improved as much as the deceived one. Here is what that does and doesn't prove.
Nutrition & FoodThey Call It Aging. Sometimes It's a Vitamin Your Doctor Forgot to Check.
New Cornell research explains how B12 deficiency starves muscle of energy, and why the standard test your doctor orders can call the problem aging.
Nutrition & FoodThe Protein Numbers on the Government Charts Were Never Meant to Help You Thrive
A new Frontiers in Nutrition perspective argues official protein and exercise guidelines were built to prevent deficiency, not to maximize healthspan, and that older adults in particular need far more.
Nutrition & FoodThe supplement aisle has spent twenty years getting older Americans wrong
A May 2026 review by two geriatric researchers, syndicated this week by ScienceDaily, restates what twenty years of trial data have already shown: the supplement aisle is built around vague promises older Americans do not need, while protein, the gap that actually moves aging outcomes, sits in the m