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Scientists have uncovered a hidden defense mechanism in aging muscles that sacrifices strength to protect cells from damage. In mice, partially restoring a crucial molecule reversed signs of muscle wasting and prevented premature death, raising hopes for new treatments for age-related muscle decline.

A new Finnish study reveals that just 30 minutes in a sauna can temporarily flood the bloodstream with additional white blood cells, potentially helping the immune system patrol the body and detect threats. The surprising response resembles the immune boost seen during exercise and may help explain some of the health benefits linked to sauna bathing.

NASA’s Artemis I mission has revealed that cosmic radiation near the Moon is higher than in Earth orbit, but not by as much as scientists might expect. Tiny experimental detectors also uncovered surprising details about how radiation passes through the human body, offering valuable insights for future lunar exploration.

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CONCLUSION: This study demonstrates that digital engagement is significantly and positively associated with SPA among older adults, with Internet use skills serving as an important moderating factor. Three interventions are needed: age-friendly interfaces, targeted engagement strategies, and digital literacy programs. Bridging the digital divide is essential for positive aging.

CONCLUSIONS: Combining dual-task gait variability with clinical functional assessments via machine learning algorithms provides a robust and interpretable framework for faller identification. The integration of optical gait analysis and machine learning facilitates early risk screening and personalized retrospective evaluation, offering a promising tool to assist in detecting older adults at risk for fall-related injuries in the aging population.

CONCLUSIONS: Findings suggest that hs-CRP and CRP biomarkers are associated with physical performance decline in older adults. Future research including a broader range of inflammation biomarkers should provide insights and understanding of mechanisms linking inflammation and physical decline.

A new clinical trial suggests that a simple daily fiber supplement could significantly reduce knee osteoarthritis pain, improve muscle strength, and make the body less sensitive to pain. Researchers discovered that the benefits may be linked to changes in gut bacteria and the hormone GLP-1, revealing a promising new approach to arthritis relief.

A major new study reveals that autistic children’s brains process faces differently, and those differences may begin earlier than scientists previously thought. Researchers found that brain signals associated with recognizing faces become more specialized as neurotypical children grow older, but show much less change in autistic children. The discovery could help explain why some autistic people have difficulty recognizing faces and reading emotions.

Scientists at McGill University have discovered a surprising new ability of immune cells that could change how we understand long-term immunity. Researchers found that T cells can actually sense how stiff their surrounding tissues are, using these physical signals to help determine whether they develop into long-lasting memory cells that protect against future infections.

The secret to aging more slowly may be hiding in your gut. Scientists discovered that certain gut bacteria are strongly linked to how quickly the body ages, with microbial differences accounting for about 15% of the variation in biological aging rates. Some bacterial species were associated with slower aging, while others were linked to accelerated aging.

Scientists have discovered that low testosterone and a high-fructose diet can work together to worsen fatty liver disease in mice. Unexpectedly, changes in gut bacteria appear to drive this harmful interaction, revealing a potential new target for preventing liver damage.

A surprising discovery reveals that widely used anti-inflammatory drugs may unintentionally help dangerous viruses spread through the body. Scientists found that JAK inhibitors, prescribed for rheumatoid arthritis and other inflammatory diseases, can weaken a crucial immune defense against influenza, COVID-19, and other infections. By suppressing genes that normally fight viruses, these medications may leave patients more vulnerable to infection.

This commentary highlights the age illusion and advocates integrating biological age and artificial intelligence (AI) to enhance clinical precision in health care. By synthesizing geroscience and machine learning, practitioners and scientists can effectively bridge the gap between experimental biomarkers and personalized medicine and longevity care. This contribution is timely as the importance of biological age and predictive analytics offer transformative potential for diagnostics while...

The condition of having a healthy, functional proteome is known as protein homeostasis, or proteostasis. Maintaining proteostasis is the province of the proteostasis network, which consists of the cellular components that regulate protein synthesis, folding, localization, and degradation. The proteostasis network is a fundamental functional unit in biology with relevance to many diseases. Despite its importance, the human proteostasis network has until now lacked a precise definition, limiting...

Although tau pathology correlates with cognitive decline in Alzheimer's disease (AD), some individuals exhibit resilience by maintaining cognitive function. The mechanisms enabling this protection, particularly before widespread cortical degeneration occurs, remain elusive. Here, we identify a dynamic interplay between cellular vulnerability and circuit-level resilience that shapes cognitive outcomes in AD. Tau accumulation in the Edinger-Westphal nucleus (EW) impairs attention by inducing...

ObjectiveThis study examined the longitudinal effects of social isolation on chronic diseases and depressive symptoms among middle-aged and older adults in South Korea, with attention to gender and age differences.MethodUsing data from three waves of the Korean Longitudinal Study of Aging, longitudinal path analysis was conducted on 5,585 participants.ResultsWomen and older adults showed higher levels of social isolation, chronic diseases, and depressive symptoms, indicating greater...