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Two heart nerve cell types sustain cardiac stability in mice

Researchers identified two major intrinsic cardiac neuron populations in mice: Npy-positive neurons regulate parasympathetic heart rate control and support coronary perfusion, while Ddah1-positive neurons help maintain electrical stability during extreme stress. Removing Npy-positive neurons caused fatal cardiac failure, whereas loss of Ddah1-positive neurons increased susceptibility to malignant arrhythmias and sudden cardiac arrest under stress.

23 Jul 2026

Persistent financial hardship accelerates age-related cognitive decline

Persistent financial hardship accelerates age-related cognitive decline, according to a new study led by University College London (UCL) researchers.

23 Jul 2026

Study uncovers biological differences behind co-occurring conditions of Down syndrome

In a groundbreaking new study published in Nature Communications, researchers from the University of Colorado Anschutz Linda Crnic Institute for Down Syndrome (Crnic Institute) discovered unique biological processes altered among individuals with Down syndrome who have different sets of co-occurring conditions.

23 Jul 2026

Researchers link genome folding to gene activity and brain tissue organization in Alzheimer's

Researchers from Carnegie Mellon University's School of Computer Science, the University of Pittsburgh School of Medicine and the University of Washington shed new light on Alzheimer's disease that could point to new directions for treatment.

23 Jul 2026

Study reveals high prevalence of post-pandemic fatigue and sleep disturbances

Disrupted sleep and anxiety may be an ongoing issue for many people after the pandemic, whether due to COVID-19 directly or to the stress and anxiety caused by the global pandemic, and may contribute to the fatigue commonly reported by people with Post-COVID-19 Syndrome (PCS, or 'long COVID').

23 Jul 2026

Review expands the role of selenium metabolism in ferroptosis

For decades, selenium has been recognized as an essential micronutrient, and glutathione peroxidase 4 (GPX4)-a selenium-containing enzyme-has been widely regarded as the central guardian against ferroptosis, an iron-dependent form of regulated cell death driven by lipid peroxidation.

23 Jul 2026

Time zone changes disrupt vital gut bacteria during travel

A dream holiday, an exotic destination, a long-haul flight, and finally some well-deserved rest. The problem is that many travelers arrive at their destination only to spend the first days of their vacation struggling with fatigue, sleep disturbances, low energy levels, and digestive issues.

23 Jul 2026

Lifestyle changes improve MASLD by suppressing key molecular pathway

Lifestyle modification is the cornerstone of managing metabolic dysfunction-associated steatotic liver disease (MASLD), a growing cause of chronic liver disease worldwide.

23 Jul 2026

Study reveals bacterial strategy behind antibiotic tolerance and persistence

Antibiotics are a medical marvel, but many microbes are gaining the ability to resist and tolerate these therapeutics.

22 Jul 2026

Study links collagen peptides to improved bone health in runners

Collagen is a protein found in skin, hair, nails, tendons, cartilage, and bones. Our bodies naturally produce collagen using the foods we eat. But, in recent years, collagen peptides have gained popularity as a supplement to support joint, hair, skin, and gut health.

22 Jul 2026

Senolytic drugs rejuvenate blood stem cells in sickle cell disease

Sickle cell disease causes premature aging of blood stem cells, which scientists may be able to address with a special class of drugs, according to a new study from St. Jude Children's Research Hospital.

22 Jul 2026

Parenting quality at age 3 predicts adolescent reward responsiveness

In 465 young people followed from late childhood to late adolescence, EEG reward responses increased until mid-adolescence before declining by age 18. Higher positive parenting and lower negative parenting at age 3 predicted stronger developmental changes in neural responses to monetary rewards, while early stress exposure showed no significant association.

22 Jul 2026

Red meat intake emerges as a potential pancreatic cancer risk factor

A systematic review and meta-analysis of 16 studies involving nearly 2 million participants found that higher red meat intake was associated with a modestly higher risk of pancreatic cancer. Processed meat intake showed no statistically significant association, although variation between studies means a small effect cannot be excluded.

22 Jul 2026

Bee venom boosts the effects of standard Parkinson's therapy

Parkinson's disease (PD) is a progressive neurodegenerative disorder caused by the loss of dopamine-producing neurons, leading to motor symptoms such as tremors, rigidity, slowed movement, and impaired balance, as well as cognitive decline.

22 Jul 2026

Study reveals how p53 mutations cause tumors to resist cancer immunotherapy

Immune checkpoint blockade (ICB) therapy has transformed cancer treatment, but many tumors remain resistant.

22 Jul 2026

Curcumin shows the best balance against cancer, study shows

Curcumin, berberine, and other plant-derived compounds have long attracted scientific interest because of their anti-inflammatory and anticancer properties.

22 Jul 2026

Study: Why First Nations children still face health care inequalities

A new study finds that First Nations Children still face long-standing inequalities in health care access in Canada despite improvements made through the application of Jordan's Principle - a policy designed to ensure First Nations children receive the services they need.

22 Jul 2026