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Researchers gave top AI models a classic attention test used in psychology and found a major flaw. While the models could correctly name colors in short lists, their performance deteriorated sharply as the task became longer and more complex. Some leading systems fell from over 90% accuracy to nearly complete failure.

A groundbreaking new connectome maps every neural connection in an adult fruit fly’s central nervous system, creating an unprecedented view of how the brain and body work together. The findings suggest that complex behaviors emerge from distributed local circuits rather than a single central controller, offering new clues about intelligence, movement, and brain function.

A major study suggests glucosamine, a popular supplement for joint pain, could be linked to faster progression from mild cognitive impairment to Alzheimer’s disease. Researchers found a 25% higher likelihood of developing dementia among glucosamine users and uncovered biological clues that may explain why.

“Chemo brain” affects up to 80% of people receiving chemotherapy, making everyday tasks harder. In a new trial, cancer patients who followed a home-based exercise program showed better attention and fewer noticeable cognitive problems than those who received a placebo. Low-dose ibuprofen also improved some cognitive measures, though its effects were less consistent.

A study of more than 2,100 adults found that eating more ultra-processed foods was linked to poorer attention and slower mental processing, even among people with otherwise healthy diets. Researchers also found higher consumption was associated with increased dementia risk factors, raising concerns about the hidden cognitive costs of heavily processed foods.

A surprising gut-heart connection may help explain why sleep apnea increases the risk of cardiovascular disease. In mice, disabling a bile acid receptor called FXR sharply reduced plaque buildup, opening the door to potential new treatments based on gut microbes and their chemical signals.

DNA from ground squirrel coprolites offers an unusually detailed record of ice age ecosystems

Tea may help protect against heart disease, diabetes, cancer, cognitive decline, and age related muscle loss, according to a major review. But the way you drink it matters, since bottled and bubble teas often contain ingredients that can diminish tea's health benefits.

Excessive alcohol consumption poses significant health risks and is closely associated with oxidative damage. The KEAP1-NRF2-ARE signaling pathway serves as the primary antioxidant system. However, current small molecule inhibitors are all covalently bound to KEAP1, meaning that once bound, they are not easily dissociated, while continuous inhibition of KEAP1 exhibits severe side effects. In this study, BLI, CETSA, Pull-down, Co-IP, and HDX-MS assay analysis were conducted to detect the KEAP1...

CONCLUSIONS: Maintaining favorable long-term patterns of PA, even with gradual decline, is associated with reduced odds of DS among older adults with chronic diseases. These findings support PA as a potentially cost-effective strategy for secondary prevention and highlight the importance of sustained behavioral patterns in mitigating mental health risks in aging populations.

CONCLUSION: Frailty is common among Iranian older adults and is independently associated with poorer physical QoL and, to a lesser extent, mental QoL. These findings support the need for targeted screening and multidomain interventions.

As online support for the experts spreads, ADA members have resigned from their positions

Science chats with researchers about a new method of assessing canine “handedness” and what it reveals about your pup’s health and personality