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A new study finds that as people age, they remember fewer details from their past and have more difficulty switching between different types of memories.
As people grow older, the broad story of a past experience may remain even as the sights, sounds, and emotions tied to a particular moment become harder to retrieve. Research from the University of East Anglia suggests that aging changes not only how much people remember, but also the type of information their memories emphasize.
The study found that older adults recalled fewer details from their past and had more difficulty when they needed to switch between different kinds of memories. At the same time, their recollections contained more general knowledge and interpretation, suggesting that aging may gradually shift memory away from vivid, moment-specific experiences and toward a broader account of what happened.
Age-related shifts in the gut microbiome contribute to systemic decline, yet specific geroprotective pathways remain poorly understood. Analyzing human aging cohorts, researchers identified Bifidobacterium pseudocatenulatum as a key bacterium whose abundance declines sharply with age, correlating with advanced biological age via a novel microbiome aging clock. Mechanistically, the team traced this geroprotective effect to 5-aminovaleric acid betaine (5-AVAB), a circulating metabolite produced by the bacterium that also decreases in aging humans. In vivo studies in aged mice demonstrated that supplementing either the live bacterium or 5-AVAB significantly improved memory, motor coordination, and mood-related behaviors. Crucially, both interventions attenuated multi-organ chronic inflammation (“inflammaging”) across the liver, lungs, muscles, and heart. These findings establish a clear causal link between age-associated microbial depletion and systemic decline, suggesting that replenishing specific lost microbes or their functional metabolites offers a targeted, translatable strategy to counteract inflammaging and extend healthspan.
Interrogating the role of the microbiome in aging, here the authors utilize multi-omics human cohort data to show that the abundance of Bifidobacterium pseudocatenulatum and its metabolite 5-aminovaleric acid betaine declines with age. Mouse studies confirm that both reduce inflammaging and extend healthspan.
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Background/Objectives: Stem cells with the ability to differentiate into other cell types and self-renewal afford a powerful apparatus for the healthcare system to replace and rejuvenate damaged tissues and organs in the treatment of various diseases. For the last few decades, stem cell therapy (SCT) has evolved from being an experimental approach to a recognized clinical treatment. SCT and regenerative medicine have garnered tremendous attention and become prominent tools, especially in treating chronic and acute disease and addressing organ failures, and in their repair and replacement, which are directly associated with human health, life, and longevity. Methods: In this review, after providing a brief history and need for the SCT, the employed delivery techniques utilizing various biomaterials, as well as recent developments in nanotechnological methods, are presented.
I made “Longevity Day” to pay tribute to the activists, scientists, investors, founders and organizations working towards a world in which aging is no longer…
The Conboys are back in the news. What they did before needed a blood transfusion to filter out blood factors and replace a part of your blood with saline solution and a protein called albumin. Now they say a drug combo can do the same thing and are going to a 100 person study.
Generation Lab claims its drug combo can “stop the spread of aging” around the body. And it’s looking for influencers to give it a try.
In a tale of identities as divergent as “The Prince and the Pauper,” a well-known cancer-causing gene also influences cells in a zombie-like state meant to prevent cancer.
Scientists at Sanford Burnham Prebys Medical Discovery Institute and an international team of collaborators published findings Aug. 20, 2026, in Nature Aging that unpack this biological paradox, showing that this cell proliferation gene played a distinct role in cells that no longer proliferate. It served as a driver of chronic inflammation linked to age-related disease, making it a promising target for future therapies to reduce sustained inflammation and promote healthier aging.
The code for producing the protein cyclin D1 is carried by the gene CCND1. This gene made waves in the field of oncology in the early-to mid-1990s when overexpressing it was shown to cause cancer. Normally, cyclin D1 governs the activity of signaling molecules needed to push cells along the cell cycle toward replicating their DNA and dividing to make new cells. This process goes haywire and becomes hyperactive in cancer, but it is nonexistent in zombie-like senescent cells.