Brain fat, not just plaques, may be the hidden driver of Alzheimer’s

For decades, scientists believed Alzheimer’s was driven mainly by sticky protein plaques and tangles in the brain. Now Purdue researchers have revealed a hidden culprit: fat. They found that brain immune cells can become clogged with fat, leaving them too weak to fight off disease. By clearing out this fat and restoring the cells’ defenses, researchers may have uncovered an entirely new way to combat Alzheimer’s — shifting the focus from plaques alone to how the brain handles fat.

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When cancer cells feel squeezed, they become more dangerous

New research shows that cancer cells don’t just grow; they adapt when stressed. When squeezed inside tissues, they transform into more invasive, drug-resistant versions of themselves. A protein called HMGB2 helps flip this dangerous switch, giving the cells new powers to escape. The findings reveal how the tumor’s environment itself can drive cancer’s deadly flexibility.

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Scientists build micromotors smaller than a human hair

Using laser light instead of traditional mechanics, researchers have built micro-gears that can spin, shift direction, and even power tiny machines. These breakthroughs could soon lead to revolutionary medical tools working at the scale of cells.

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Dirty water, warm trucks, and the real reason romaine keeps making us sick

Romaine lettuce has a long history of E. coli outbreaks, but scientists are zeroing in on why. A new study reveals that the way lettuce is irrigated—and how it’s kept cool afterward—can make all the difference. Spraying leaves with untreated surface water is a major risk factor, while switching to drip or furrow irrigation cuts contamination dramatically. Add in better cold storage from harvest to delivery, and the odds of an outbreak plummet. The research offers a clear, science-backed path to safer salads—one that combines smarter farming with better logistics.

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Doctors used music instead of medication—what they saw in dementia patients was remarkable

A groundbreaking pilot in NHS dementia wards is using live music therapy—called MELODIC—to ease patient distress without relying on drugs. Developed by researchers and clinicians with input from patients and families, this low-cost approach embeds music therapists directly into care teams. Early results show improved patient wellbeing and less disruptive behavior, sparking hope for wider NHS adoption.

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Women have substantially less influence on Twitter than men in academic medicine

Women who are health policy or health services researchers face a significant disparity in social media influence compared to their male peers, according to a new study. Although the average number of tweets among all researchers tend to be consistent, women trail behind men in follower counts, regardless of how active they are on Twitter.

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Habitual tea drinking modulates brain efficiency: Evidence from brain connectivity evaluation

The researchers recruited healthy older participants to two groups according to their history of tea drinking frequency and investigated both functional and structural networks to reveal the role of tea drinking on brain organization.

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Swimming toward an 'internet of health'?

In recent years, the seemingly inevitable 'internet of things' has attracted considerable attention: the idea that in the future, everything in the physical world — machines, objects, people — will be connected to the internet. Drawing on lessons learned from studies on a variety of marine animals outfitted with sensors, researchers in a new perspective article describe how an 'internet of health' could revolutionize human medicine.

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Chair yoga more effective than music therapy in older adults with advanced dementia

Researchers assessed the ability of older adults with advanced dementia to participate in non-pharmacological interventions and compared chair yoga with chair-based exercise and music therapy. Results showed that participants with moderate-to-severe dementia could safely adhere to non-pharmacological interventions; more than 97 percent fully engaged in each session. The chair yoga group reported a higher quality of life score, including physical condition, mood, functional abilities, interpersonal relationships, and ability to participate in meaningful activities.

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