Medical Xpress news

Medical Xpress / Exceptional memory in 80s defies simple Alzheimer's genetic risk explanation

Many people assume that some memory decline is an inevitable consequence of getting older. But a select group of older adults, known as "SuperAgers," reach their 80s and 90s while retaining memory performance as good as or ...

Jul 22, 2026
Medical Xpress / Can AI chatbots make mental health worse? Study identifies five risky patterns

The use of generative AI has become so widespread that ChatGPT is gradually becoming a verb, much like Google and Photoshop. Hundreds of millions of people now use large language model (LLM)-based chatbots for advice on personal, ...

Jul 22, 2026
Medical Xpress / A single RSV shot emerges as a promising new shield for infants at risk of severe disease

Viral infections that attack the lungs are among the leading reasons infants are hospitalized. A new treatment may offer protection against these infections that is as effective and safe as existing options but requires far ...

Jul 22, 2026
Medical Xpress / Frequent cannabis users wake with higher cortisol levels, study finds

Research suggests people who often use cannabis start their day with higher cortisol levels than people who don't, indicating a relationship between frequent cannabis use and a possible dysregulation of the body's daily stress ...

Jul 22, 2026
Medical Xpress / Natural compounds against sarcoma: Which one shows the greatest potential?

Curcumin, berberine and other plant-derived compounds have long attracted scientific interest because of their anti-inflammatory and anticancer properties. A new study by researchers from Wroclaw Medical University and the ...

Jul 22, 2026
Medical Xpress / Gut immune cells may help explain how B-cell depletion controls MS

B-cell depletion therapies, in which B cells of the immune system that may drive disease activity in multiple sclerosis (MS) are temporarily removed, have contributed significantly to improved treatment for patients in recent ...

Jul 22, 2026
Medical Xpress / Scientists discover hidden gateways that allow the brain to clear waste

The brain continuously produces metabolic waste that must be removed to maintain healthy function. Cerebrospinal fluid (CSF) plays a central role in this process by carrying away proteins such as amyloid-β, phosphorylated ...

Jul 22, 2026
Medical Xpress / How a pandemic detour helped researchers uncover clues to a mysterious disease

When the COVID-19 pandemic shut down international travel in 2020, Michigan State University researcher Eric Benbow faced a problem. A $2.5 million research project designed to study an environmental pathogen in South America ...

Jul 22, 2026
Medical Xpress / The lone star tick is bringing another infection concern, the Bourbon virus

Tick-borne diseases are common throughout the United States, and most cases are treated effectively. A rarely diagnosed tick-borne infection, the Bourbon virus, transmitted by the common lone star tick, could soon begin to ...

Jul 22, 2026
Medical Xpress / Three genetic modifiers may alter inherited Alzheimer's onset and progression

Autosomal dominant Alzheimer's disease (ADAD) is a genetically inherited form of Alzheimer's disease that accounts for only about 1% of Alzheimer's disease cases. However, because individuals with the gene mutations are extremely ...

Jul 22, 2026
Medical Xpress / New tool uncovers overlooked disease-linked genes by accounting for ancestry and family ties

Every person's DNA tells a unique story. To unlock the full potential of genetic research, scientists need tools that reflect the complexity of the people they study.

Jul 22, 2026
Medical Xpress / Breathalyzer can 'sniff out' when your body starts burning fat

Researchers have developed a breath detector with a chemical sensor that sniffs out when your body is burning fat through a single exhale. Reporting in Device, the handheld, smartphone-assisted device measures acetone—a ...

Jul 22, 2026