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Is the peptide craze backed by science? The promise behind the hype
Nature Index 2026 Research Leaders rankings: are China’s East Asian neighbours keeping pace with it?
Popular joint supplement glucosamine linked to faster Alzheimer’s progression
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.
Cancer patients found a simple way to stay mentally sharp during chemotherapy
“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.
Ultra-processed foods may be stealing your focus even if you eat healthy
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.
Sleep apnea’s hidden heart disease trigger found in the gut
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.
Frozen squirrel poop rewrites rodent evolution, reveals new details about mammoths
DNA from ground squirrel coprolites offers an unusually detailed record of ice age ecosystems
Tea can improve your health and longevity, but the way you drink it matters
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.
Capsaicin acts as a novel NRF2 agonist to suppress ethanol induced gastric mucosa oxidative damage by directly disrupting the KEAP1-NRF2 interaction
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...
Association between trajectories of physical activity and depressive symptoms among Chinese older adults with chronic disease: evidence from the Chinese Longitudinal Healthy Longevity Survey
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.
The association between frailty and quality of life in elderly population in Southern Iran: Findings from the Bushehr Elderly Health Program
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.
Diabetes society officials resign after removal of Trump protesters from conference
As online support for the experts spreads, ADA members have resigned from their positions
How can you tell whether your dog is right-pawed or left-pawed?
Science chats with researchers about a new method of assessing canine “handedness” and what it reveals about your pup’s health and personality