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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

New evidence shows Parkinson’s spreads via immune cells from the gut

New research reveals how Parkinson's spreads from the gut to the brain, with the help of immune cells – offering a new potential therapeutic strategy – in a study in mice led by scientists at the UK Dementia Research Institute at UCL (University College London).

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

Following the EAT-Lancet diet lowers chronic kidney disease risk

Research shows the EAT-Lancet diet may lower chronic kidney disease risk, emphasizing the importance of diet quality and personalized nutrition in prevention.

28 Jan 2026

Silencing a specific brain circuit can prevent and reverse chronic pain

A neural circuit hidden in an understudied region of the brain plays a critical role in turning temporary pain into pain that can last months or years, according to new University of Colorado Boulder research.

27 Jan 2026

First topical CRISPR gene therapy corrects disease-causing mutations in human skin

Gene-editing tools like CRISPR have unlocked new treatments for previously uncurable diseases. Now, researchers at the University of British Columbia are extending those possibilities to the skin for the first time.

27 Jan 2026

Depression and anxiety together raise long COVID risk in older women

Older women who have a history of both depression and anxiety had a 78% higher risk of developing long COVID after a SARS-CoV-2 infection, report University of California San Diego researchers in the Jan. 27, 2026 online edition of the journal Menopause.

27 Jan 2026

Immune system dysfunction may fuel progressive heart failure after heart attacks

When the heart's muscle is weakened or injured due to a heart attack, it can make it hard for the heart to pump enough blood to meet the body's needs.

27 Jan 2026

Richer social environments linked to better cognitive health in aging adults

Research by an interdisciplinary team from McGill University and Université Laval provides new insights into the links between social factors and cognitive health among aging adults.

27 Jan 2026

Gut problems may shape Parkinson’s disease progression through the gut-brain axis

This narrative review examines how gastrointestinal dysfunction, gut dysbiosis, and altered gut-brain axis signaling are closely associated with the onset and progression of Parkinson’s disease. It synthesizes evidence supporting a possible bottom-up disease model while highlighting integrative, gut-targeted strategies as adjuncts to symptom management rather than proven disease-modifying therapies.

27 Jan 2026

How modern lifestyles reprogram the gut microbiome and shape disease risk

Modern lifestyle factors such as circadian disruption, sleep deprivation, stress, and exercise reshape the gut bacteriome and its metabolic outputs. These microbiome changes are linked to immune, metabolic, and cancer-related pathways, largely through evidence from animal models and observational human studies.

27 Jan 2026

Scientists offer new insight into how common parasite T. gondii causes disease

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to one-third of the global population, is far more complex than previously believed.

27 Jan 2026

Cardiac MRI shows promise as a diagnostic tool for coronary heart disease

Cardiac magnetic resonance imaging (MRI) is an appropriate non-invasive procedure for functional diagnostics in patients who, as a result of basic diagnostics, are suspected of having chronic coronary heart disease (CHD) or progression of known CHD: The diagnostic accuracy of cardiac MRI is at least comparable to that of SPECT (single photon emission computed tomography) in the detection of CHD, but does not expose patients to radiation.

27 Jan 2026