Category Health/Medical

Synthetic materials mimic seashells to enhance energy absorption

Researchers seated behind a hand scale prototype of their new multilayer material.
Professor Shelly Zhang, center, joined by fellow researchers Rahul Dev Kundu, left, and Shi Zhao, right, have developed a synthetic multi-layered material where each layer responds to stress differently. This original concept is derived from bones and clam shells, which use multiple layers to help heal from trauma. The researchers envision this being used in things like car bumpers and even wearable bandages. Photo taken at the University of Illinois Urbana-Champaign on Wednesday, May 7, 2025. (Photo by Fred Zwicky / University of Illinois Urbana-Champaign)

Millions of years of evolution have enabled some marine animals to grow complex protective shells composed of multiple layers that work together to dissipate physical stress...

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US approves first blood test for Alzheimer’s

blood test
Credit: Karolina Grabowska from Pexels

The United States on Friday approved the first blood test for Alzheimer’s, a move that could help patients begin treatment earlier with newly approved drugs that slow the progression of the devastating neurological disease.

The test, developed by Fujirebio Diagnostics, measures the ratio of two proteins in the blood. The ratio is correlated with amyloid plaques in the brain—a hallmark of Alzheimer’s that, until now, has been detected only through brain scans or spinal fluid analysis.

“Alzheimer’s disease impacts too many people—more than breast cancer and prostate cancer combined,” said Food and Drug Administration Commissioner Marty Makary.

“Knowing that 10% of people aged 65 and older have Alzheimer’s, and that by 2050 that number i...

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Long working hours may alter brain structure, preliminary findings suggest

Night shift
Credit: CC0 Public Domain

Long working hours may alter the structure of the brain, particularly the areas associated with emotional regulation and executive function, such as working memory and problem solving, suggest the findings of preliminary research, published online in Occupational & Environmental Medicine.

Ultimately, overwork may induce neuroadaptive changes that might affect cognitive and emotional health, say the researchers.

Long working hours have been linked to heightened risks of cardiovascular disease, metabolic disorders, and mental health issues. And the International Labor Organization (ILO) estimates that overwork kills more than 800,000 people every year, note the researchers.

While the behavioral and psychological consequences of overwork are reasonably w...

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Forgotten cell clusters may hold key to diabetic neuropathy pain

Human dorsal root ganglia in a case of diabetic peripheral neuropathy show formation of Nageotte nodules (circled in pink), which appear to be a strong indicator of nerve cell death.

A phenomenon largely ignored since its discovery 100 years ago appears to be a crucial component of diabetic pain, according to new research from The University of Texas at Dallas’s Center for Advanced Pain Studies (CAPS).

Findings from a new study published in Nature Communications suggest that cell clusters called Nageotte nodules are a strong indicator of nerve cell death in human sensory ganglia. These could prove to be a target for drugs that would protect these nerves or help manage diabetic neuropathy.

“The key finding of our study is really a new view of diabetic neuropathic pain,” said Dr...

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