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How a common gut bacterium may protect health

Akkermansia muciniphila's impact on immunity and pregnancy outcomes underscores its promise as a probiotic, with implications for infectious disease treatment.

4 May 2026

A more accurate tool for assessing Arsenic toxicity

Public health experts estimate that more than 200 million people worldwide are exposed to arsenic through contaminated drinking water. Scientists know long-term exposure to arsenic is associated with increased risk of chronic illnesses like cancer and cardiovascular disease, but there hasn't been a reliable way to track these exposures and fully understand their effects on the body and the mechanisms behind them.

4 May 2026

Finding new ways to mimic ketamine’s antidepressant effects

Weill Cornell Medicine investigators have "reverse engineered" ketamine's antidepressant effects to identify potential new strategies for treating depression.

4 May 2026

Five diet patterns shaping health in older Americans

Research identifies distinct dietary patterns in older adults, revealing how nutrition impacts health outcomes and food security among this vulnerable group.

4 May 2026

Scientists find that human embryos are vulnerable to COVID

A University of California, Riverside study reports that cells in the earliest stages of human development could be susceptible to infection by SARS-CoV-2, which causes COVID-19, offering new insight into how the virus interacts with developing human tissues and why that may matter for pregnancy research.

4 May 2026

New genomic study tracks rare blood disease in children

Aplastic anemia is a rare, life-threatening blood disorder where patients are unable to make enough blood cells due to the immune system's attack on blood stem cells. The condition can progress to myelodysplastic syndrome (MDS) and leukemia. A study led by scientists at St. Jude Children's Research Hospital, with multiple collaborating institutions, used state-of-the-art genomic techniques to profile 619 children and adults with aplastic anemia.

4 May 2026

Sickle cell disease care is unevenly distributed across regions in New York State

Sickle cell disease (SCD) is the most common inherited blood disorder in the United States. Approximately 10 percent of people with SCD in the US live in New York State, with the majority residing in New York City.

4 May 2026

New genetic tool tracks how bacteria spread between people

The research, published on April 24th, 2026, in Nature Microbiology, describes how the new tool, called TRAnsmision Clustering of Strains (TRACS), uses genomics to distinguish between closely related bacterial strains.

4 May 2026

New Canadian guidelines streamline screening for high-risk drinking

An update to Canadian guidance on screening for high-risk drinking and alcohol use provides streamlined recommendations in CMAJ (Canadian Medical Association Journal) that authors hope will make it easier for health care professionals to talk to patients about alcohol use.

4 May 2026

Active brown fat may protect heart health in obese individuals

People with obesity face a significantly increased risk of atherosclerosis, and consequently heart attack and stroke.

4 May 2026

New tools for quicker and easier Mpox diagnosis

Following the rise in monkeypox (Mpox) cases, particularly in countries where the disease had not traditionally been observed, the World Health Organization (WHO) declared a Public Health Emergency of International Concern in June 2022 and again in August 2024.

4 May 2026

High-intensity interval exercise is most effective for heart patients

Endothelial dysfunction is a hallmark of cardiovascular disease (CVD) and plays a central role in vascular inflammation, thrombosis, and impaired vasodilation.

4 May 2026

Child health experts launch GenHEART to tackle Australia's obesity crisis

Heart health, diet, exercise and sleep will be targeted under a multi-pronged strategy by child health experts to address Australia's obesity crisis.

4 May 2026

Semaglutide as a promising new treatment for alcohol use disorder

Research indicates semaglutide can significantly decrease alcohol consumption and cravings in individuals with comorbid obesity and alcohol use disorder.

4 May 2026

AI model outperforms doctors in clinical reasoning tests

AI's performance in diagnostic tasks exceeds that of physicians, indicating a shift towards integrating advanced models in real-world medical decision-making.

4 May 2026

Randomized controlled trial validates total hip arthroplasty for improving functional capacity

Total hip arthroplasty leads to the best outcomes in the treatment of moderate-to-severe hip osteoarthritis, according to a new study by the University of Eastern Finland and Kuopio University Hospital. During a one-year follow-up, surgery combined with conservative treatment was found to relieve pain and improve functional capacity and quality of life more effectively than conservative treatment alone, which was based on an exercise program.

4 May 2026

Cellular aging in immune cells signals early onset of cognitive depression

Blood tests measuring the aging of certain white blood cells can predict cognitive and mood-related symptoms of depression, rather than physical symptoms.

4 May 2026

Short-term exposure to idealized fitness posts undermines body image across genders

Social media is filled with posts about fitness and healthy eating aiming to inspire and encourage better lifestyles. However, out today, a new large review study led by an Olympic athlete reveals that this seemingly motivational content can sometimes have unexpected negative impacts on the health and wellbeing of young adults.

4 May 2026

Researchers leverage tamoxifen's active metabolite to improve breast cancer prevention

Low doses of the investigational medicinal product endoxifen reduce breast density to the same extent as the standard treatment tamoxifen, but without causing such troublesome side effects. This is shown by a new study from Karolinska Institutet published in the Journal of the National Cancer Institute. The results may have implications for future preventive treatment of breast cancer.

4 May 2026

Study debunks steroid myths, framing creatine as an essential energy-providing molecule

Creatine, a compound often associated with gym-goers and athletes, has long been touted as a performance-enhancing supplement. But beyond the hype, what does science actually reveal about its effects on the body and mind?

4 May 2026