The world's ‘heritage’ diets could hold vital clues to better health. Writing in Nature Medicine, researchers from 12 countries have launched the World Diet Initiative, a global effort to document and study these diets before this knowledge is lost.

People who feel lonely are much more likely to experience poorer mental health and lower wellbeing, a new collaborative study led by the University of Bristol, Nesta and Amsterdam UMC has found. Loneliness was also found to be linked with worse general health, including experiencing multiple health conditions. Social isolation is associated with lower wellbeing, too.

In their first two years after graduation, resident doctors are currently twice as likely as other healthcare professionals to make prescribing errors. However, new evidence presented by Taylor & Francis during Sense about Science Evidence Week demonstrates that incorporating structured, video-enhanced feedback into training programs can dramatically reduce these mistakes.

Researchers at the Technion – Israel Institute of Technology have developed DeepHHF, an artificial intelligence model that predicts the risk of heart failure up to five years before the onset of clinical disease using routine 24-hour Holter ECG recordings. Published in npj Digital Medicine, the model was trained on approximately 70,000 Holter examinations provided by Leumit Health Services and detects subtle ECG abnormalities that are often imperceptible to clinicians. By enabling early identification of high-risk patients, DeepHHF could support timely preventive treatment and help reduce hospitalizations, morbidity, and mortality. The study was led by Prof. Joachim Behar and Ph.D. student Eran Zvuloni from the Technion's Faculty of Biomedical Engineering, in collaboration with researchers and physicians from Rambam Health Care Campus, Shaare Zedek Medical Center, the Hebrew University of Jerusalem, Leumit Health Services, and Hadassah Medical Center.

Australia’s first-ever clinical guidelines on childhood hypertension aim to address findings that some primary school children already have signs of developing heart damage.  

Dexamphetamine and methylphenidate have been found to be equally effective in the treatment of ADHD in children, but greater weight loss was observed in children taking dexamphetamine, according to an Australian study published in the Journal of Paediatrics and Child Health. 

CLEVELAND, Ohio (July 15, 2026)—Perimenopause is an underrecognized life stage that is often accompanied by complex and fluctuating symptoms. A new study sought to quantify the prevalence of perimenopause uncertainty and identify the primary causes. It found that perimenopause uncertainty is prevalent and largely because of knowledge gaps and barriers to confirmation and care. Results of the study are published online today in Menopause, the journal of The Menopause Society.

About The Study: A study in JAMA presented Wednesday, July 15, at the annual Alzheimer’s Association International Conference reports that a blood test measuring phosphorylated tau 217 (P‑tau217) in plasma can help estimate an individual’s risk of developing cognitive impairment over the following 2, 5, and 10 years.

Across six cohorts, higher p-tau217 levels were consistently associated with increased risk of progression to cognitive impairment in cognitively unimpaired older adults, and the association remained significant after adjustment for amyloid PET.

The findings support P‑tau217 as a marker linked to amyloid and tau-related disease processes. If ongoing secondary prevention trials demonstrate that early intervention can delay or prevent cognitive decline, blood‑based biomarkers like P‑tau217 could help identify individuals most likely to benefit, authors note.

However, current Alzheimer’s Association clinical practice guidelines recommend against testing cognitively unimpaired older adults outside research studies or clinical trials.

Authors emphasize that the risk estimates are based on selected research cohorts, with greater confidence in 5‑year than 10‑year projections, and that current models do not fully account for vascular comorbidities or competing risk of death; additionally, P-tau217 may not fully reflect non-Alzheimer contributors to cognitive impairment, such as vascular or other neurodegenerative processes.