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Food allergies affect more than half a billion people worldwide. In severe cases, even a small bite of the wrong food can trigger anaphylaxis - a rapid, body-wide allergic reaction that can cause difficulty breathing, a dangerous drop in blood pressure and even death.

For women diagnosed with early breast cancer, the long-term risk of developing a second primary cancer is low (around 2-3% greater than women in the general population), finds a study published by The BMJ today.

Six weeks of omega-3 supplementation increases the omega-3 index and lowers heart rate in athletes, yet shows no performance advantage in endurance trials.

Investigators at Mass General Brigham and the Richard A. and Susan F. Smith Center for Outcomes Research at Beth Israel Deaconess Medical Center have uncovered how patients' healthcare spending has changed following the implementation of the No Surprises Act in 2022, a bipartisan law prohibiting unexpected or "surprise" bills after patients receive out-of-network medical care.

New research has revealed that older age and low aerobic fitness levels are strong and independent risk factors for a high burden of heartbeat irregularities, known as arrhythmias, that indicate future cardiovascular risk.

Researchers from Japan discover that glucagon-like peptide-2 (GLP-2) analogs can deeply and beneficially reshape the intestinal environment.

Bulimia nervosa (BN), or bulimia, is a mental health disorder characterized by binge eating and a fear of gaining weight, which drives people to try and avoid weight gain, usually by compensatory (vomiting etc.).

A new protocol published in BMJ Open outlines the PERTH trial, a randomized controlled study testing whether a four-week low-plastic lifestyle can reduce exposure to plastic-derived endocrine-disrupting chemicals.

A New Zealand study found that all commercial toddler and infant foods carried multiple on-pack claims, often including misleading health, nutrition, or composition messages. Researchers call for tighter regulations to protect caregivers from deceptive marketing.

Researchers analyzing data from 186,744 UK Biobank participants found that ultra-processed food consumption and specific additives, such as sugars, sweeteners, flavorings, and colorings, were linked to higher mortality. Some processing aids showed risks, while gelling agents appeared protective.

Researchers forecast that people born between 1939 and 2000 in 23 high-income countries will see slower life expectancy gains than earlier generations. The slowdown stems largely from reduced improvements in childhood survival, with later-life gains unable to offset the decline.

Researchers at Children's Hospital of Philadelphia (CHOP) found that certain lipids, or fats, in obesity-causing foods also cause asthma-like lung inflammation.

New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London, in partnership with the University of Bath, has found that the reasons why a person chooses to use cannabis can increase their risk of developing paranoia.

After 140 years of vital, often invisible service, public health nurses (PHNs) deserve formal recognition as a distinct occupation, says a new study from Columbia University Mailman School of Public Health.

Messenger RNA, or mRNA, vaccines entered the public consciousness when they were introduced during the COVID-19 pandemic, and both Pfizer-BioNTech and Moderna used the technology in developing their highly effective vaccines to fight the virus.

An international team of researchers has conducted the most comprehensive global-to-local analysis to date on long COVID risk, using disability data from the height of the pandemic to identify vulnerable populations.

Several studies have shown that students who attend afternoon classes tend to perform better in school than those who attend morning classes. This is due to greater synchrony between class times and students' biological clocks.

One of the great challenges faced by families coping with Alzheimer's disease and other forms of dementia is learning how to communicate effectively with the person impacted by the disease while also upholding their personhood, or sense of personal value.

What constitutes a life well-lived? A new Michigan State University-led study is turning to a common cultural artifact to find out: the obituary.

Alcohol-associated liver disease (ALD) is a major cause of liver transplantation and death worldwide, and its impact is only growing. In 2022, the annual cost of ALD in the United States was $31 billion.