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Researchers linked retrospective digital-habit surveys from 5,227 northern Italian students with standardized test records spanning grades 2–10, including 4,545 students in the principal longitudinal analysis. Students who opened social media accounts in grades 6 or 7 had lower later Italian and mathematics scores than matched students who waited until grade 9 or later, although residual confounding cannot be excluded.

A 10-year study of 1,003 older adults linked cognitive super-aging to fewer emergency visits, unplanned hospital admissions, delirium episodes, dementia diagnoses, and residential aged care placements. Maintaining cognitive performance over time showed the strongest overall association with favorable health outcomes and was linked to a 46% lower mortality risk.

Researchers treated male high-fat-fed mice with liraglutide for 14 days, then tracked fecal bacterial communities after a 7-day washout using 16S rRNA sequencing. Liraglutide shifted the microbiome toward Lactobacillus- and Leptogranulimonas-related taxa while reducing several fermentative taxa, but most changes moved back toward baseline after treatment stopped.

Workplace exposure to pesticides (herbicides and insecticides) is linked to a 60-70% heightened risk of the most common form of motor neuron disease-amyotrophic lateral sclerosis, or ALS for short, finds a synthesis of the available evidence, published online in Occupational & Environmental Medicine.

In a cohort of nearly 3,000 boys followed from birth into childhood, young boys who were circumcised just after birth did not have a higher risk of autism, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health.

Congenital heart disease affects approximately two in every 100 newborns globally. But why do they occur?

Researchers analyzing claims from more than 10 million siblings linked first-born status to higher odds of several neurodevelopmental and allergic diagnoses, while second-born status tracked with substance abuse and gastrointestinal conditions. The observational study identified 150 significant birth-order associations across the phenome, but claims data and residual confounding prevent causal conclusions.

Letters to patients from ophthalmology services--the highest volume outpatient specialty in UK healthcare-include too much complex language and medical terminology which patients are likely to find hard to understand, reveals an analysis of more than 4 million letters from one large hospital trust, published in the open access journal BMJ Health & Care Informatics.

A study published in the Journal of Political Economy, one of the world's top economics journals, provides the first causal evidence that improving sleep can directly enhance academic performance.

A new UC Davis Health study published in Psychological Medicine suggests that when it comes to helping adolescents succeed in school and maintain healthy friendships, sleep may matter more than screen time, exercise or diet.

New research by UCLA Health found GLP-1 medications may reduce the risk of serious fractures for adults with type 2 diabetes.

New peer-reviewed publications find significant gaps in lip product regulation and safety testing, including reliance on inappropriate skin models and significant underestimation of usage and ingestion rates, leaving consumers exposed to potential risks.

An erectile dysfunction drug that is also used to treat symptoms like sudden urgency and frequency, which are associated with an enlarged prostate in men, may heighten the risk of the serious eye condition, glaucoma, finds a large comparative study published online in the British Journal of Ophthalmology.

It may seem natural to assume that people experience cognitive decline after age 90, but until recently, researchers had limited evidence about how advanced age affects the brain.

Four in ten children who attend Child and Adolescent Mental Health Services (CAMHS) in Scotland go on to attend specialist psychiatric services as adults, according to new research.

AI companions are becoming increasingly popular, with millions of users forming deep connections with persona-based chatbots and simulated AI partners.

As we age, chronic inflammation-or "inflammaging"-increases throughout the body and weakens our ability to fight cancer.

Researchers followed 549,851 Korean children and found no statistically significant association between maternal diabetes and overall childhood cancer. The analysis linked maternal diabetes to an 81% higher relative risk of urinary tract cancer, but the absolute difference was only 37 additional cases per 100,000 offspring.

New research from the University of Oklahoma demonstrates how an aggressive form of breast cancer co-opts the body's own immune system to attract nerves that fuel tumor growth.

Previous studies have examined the associations between adherence to LS7 and cognitive outcomes, with findings suggesting that higher LS7 scores are associated with better cognitive performance, reduced dementia risk and improved brain health.