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Nitrate source matters more than nitrate amount

Findings suggest that plant-sourced nitrates may reduce dementia risk, while animal and water sources are linked to increased risk, emphasizing diet quality.

29 Jan 2026

Eating melatonin-rich foods is linked to lower obesity and depression rates

This cross-sectional analysis of 8,320 Brazilian adults quantified melatonin intake from habitual diets and examined associations with multiple chronic health outcomes. Higher dietary melatonin intake was inversely associated with obesity and depression in a non-linear pattern, with no significant associations observed for other conditions.

28 Jan 2026

Air pollution, not diet, shows the strongest link to poorer concentration in schoolgirls

This cross-sectional study of 300 school-aged girls in Tehran found that higher air pollution exposure was consistently associated with poorer concentration, while dietary antioxidant capacity showed weaker, model-dependent links to attention. No significant associations or interactions were observed for short-term memory, highlighting pollution exposure as the dominant factor influencing attentional performance.

28 Jan 2026

Sleeping without pillows may help reduce nighttime eye pressure in glaucoma

Sleeping without pillows may help lower high internal eye pressure, build-up of which causes optic nerve damage and glaucoma-the leading cause of irreversible blindness worldwide–in people with the condition, suggests preliminary research, published online in the British Journal of Ophthalmology.

27 Jan 2026

The neurological benefits of grandparenting

Helping to care for grandchildren may serve as a buffer against cognitive decline in older adults, according to research published by the American Psychological Association.

27 Jan 2026

Olive oil type matters for cognition and gut health in older adults

Higher intake of virgin and total olive oil was associated with modest but significant improvements in cognitive performance over two years in older adults with metabolic syndrome. These associations were partly linked to gut microbiota composition, with specific taxa such as Adlercreutzia contributing a small mediating effect.

26 Jan 2026

Unraveling liver injury mechanisms in familial hypobetalipoproteinemia

Familial Hypobetalipoproteinemia (FHBL), caused by variants in the apolipoprotein B (APOB) gene, is a rare autosomal co-dominant monogenic disorder characterized by lifelong low plasma levels of total cholesterol, low-density lipoprotein cholesterol (LDL-C), and APOB.

24 Jan 2026

New assessment framework improves evaluation of cutaneous chronic graft-versus-host disease

An international task force of medical experts recently proposed major revisions to the way doctors measure treatment success for a common–and often severe–skin complication of stem cell transplantation.

24 Jan 2026

Camera-based technology measures cardiopulmonary coupling without physical sensors

From a physiological perspective, heartbeats and breathing do not operate independently in the human body. Cardiac rhythm varies with the respiratory cycle, and the close interaction between the two is known as cardiopulmonary coupling (CPC).

23 Jan 2026

Genetic study links vitamin B1 metabolism to gut motility and IBS risk

Research links thiamine metabolism to gut motility, identifying genetic markers that could lead to new therapies for IBS and related digestive disorders.

23 Jan 2026

Wildfire smoke in late pregnancy may raise autism risk

Prenatal exposure to wildfire smoke in late pregnancy may modestly raise autism risk in children, emphasizing the importance of safeguarding pregnant women.

23 Jan 2026

Expert guidance on fecal microbiota transplantation in liver disease

The gut microbiota plays a crucial role in maintaining host health and liver function. Fecal microbiota transplantation (FMT), an emerging therapeutic modality, has demonstrated promising potential in the treatment of chronic liver diseases.

22 Jan 2026

Wearable AI device turns silent throat signals into fluent speech for stroke patients

AI technology in a wearable choker helps stroke survivors overcome communication barriers by transforming throat vibrations into clear, context-aware speech.

21 Jan 2026

Prenatal wildfire smoke exposure linked to higher autism risk in children

Exposure to wildfire smoke during the final months of pregnancy may raise the risk that a child is later diagnosed with autism, according to a new study led by Tulane University researchers.

20 Jan 2026

New genetic insights reveal vitamin B1's role in gut health and motility

Bowel habits aren't exactly dinner-table talk. But they reflect how quickly the gut moves things along, and when that goes wrong people can experience constipation, diarrhoea, or irritable bowel syndrome (IBS).

20 Jan 2026

Super agers' resilience against Alzheimer's disease linked to protective gene variant

The gene variant posing the greatest genetic risk of late-onset Alzheimer's disease (AD) is called APOE-ε4. A different variant of the same gene, APOE-ε2, is thought to confer protection against AD.

19 Jan 2026

Students who game the most show lower diet quality and higher BMI, study finds

A national study of Australian undergraduates suggests that spending more than 10 hours a week gaming is associated with poorer diet quality, higher body weight, and disrupted sleep, highlighting the need for healthier gaming habits rather than less gaming altogether.

18 Jan 2026

Research suggests bamboo-based foods could support metabolic health

This systematic review synthesizes human, in vitro, and food-processing studies on bamboo consumption, finding limited but suggestive evidence for metabolic, digestive, and antioxidant benefits when products are properly prepared. It also highlights safety considerations, including potential goitrogenic effects from inadequately processed shoots, and calls for higher-quality human trials.

18 Jan 2026

Study provides a new paradigm for managing transplant‑related immune complications

Acute graft-versus-host disease (aGVHD) is one of the most serious complications after allogeneic hematopoietic stem cell transplantation (allo‑HSCT).

16 Jan 2026

FDA-cleared ADHD device not effective in reducing symptoms

A large multicenter clinical trial led by King's College London with 150 children and adolescents has shown that a device cleared by the US FDA to treat ADHD is not effective in reducing symptoms.

16 Jan 2026