Medical Xpress news

Medical Xpress / Largest US study finds teen cannabis use linked to slower cognitive development

Researchers from University of California San Diego have found that teenagers who begin using cannabis show slower gains in thinking and memory skills as they grow. The study, published in Neuropsychopharmacology, analyzed ...

44 minutes ago
Medical Xpress / Robust flu protection may rely on B cells that are long-lived residents in the lungs

Deep in the lungs, resident memory B cells stand guard against influenza reinfection—but whether they remain there may depend on how strongly they are signaled through their own receptors. New research using an animal model ...

6 hours ago
Medical Xpress / Cardiorespiratory fitness may cut dementia, depression and psychosis risk

Many studies carried out over the past decades have explored the relationship between mental and physical health, showing that the two are often interlinked. One well-established indicator of overall physical health is cardiorespiratory ...

7 hours ago
Medical Xpress / Novel diabetic wound treatment turns cells into manufacturers

Diabetes affects more than 40 million people in the United States, according to the American Diabetes Association. For many, the chronic condition means a lifetime of pain as worsening circulation leads to nonhealing ulcers ...

4 hours ago
Medical Xpress / Teen cannabis use rose after California legalization, reversing years of decline

Teen cannabis use in Northern California increased following the legalization of adult recreational cannabis and later declined during the COVID-19 pandemic, according to new research from Kaiser Permanente published in JAMA ...

9 hours ago
Medical Xpress / Giving a voice to vocal fold regeneration—uncovering a new map of stem-like cells

The larynx, also known as the voice box, is home to the vocal folds and is the reason people can talk and sing while manipulating pitch and volume. The vocal folds are covered with mucosa, or mucous membranes.

11 hours ago
Medical Xpress / Sex differences in brain gene activity could explain why some disorders affect men and women differently

The physical differences between men and women are all too obvious, but the biological divide goes right down to the cellular level in the brain, according to a new study published in the journal Science.

Apr 18, 2026
Medical Xpress / 3D-printed brain sensors may unlock personalized neural monitoring

Soft electrodes designed to perfectly match a person's brain surface may help advance neural interfaces for neurodegenerative disease monitoring and treatment, according to a new study led by Penn State researchers. Neural ...

Apr 18, 2026
Medical Xpress / How mRNA cancer vaccines still destroy tumors when a key immune cell is missing

The advent of mRNA vaccines against SARS-CoV-2 in 2020 changed the course of the COVID-19 pandemic. Now, the Nobel Prize–winning technology is being adapted to fight cancer, with mRNA vaccines in clinical trials for melanoma, ...

Apr 18, 2026
Medical Xpress / Brain-on-a-chip reveals how Parkinson's proteins weaken the brain's vascular barrier

Scientists looking for the causes of neurodegenerative diseases like Parkinson's and Alzheimer's generally focus on the buildup of aberrant proteins in the brain that impede normal neural connections. But new research from ...

Apr 18, 2026
Medical Xpress / Why private gardens mattered so much during the first COVID-19 lockdown

A team of researchers led by the University of Aberdeen has found that private gardens played a vital role in supporting people's well-being during the U.K.'s first COVID-19 lockdown, when access to public green spaces was ...

Apr 18, 2026
Medical Xpress / How a tiny circle of repeat offenders poisoned 100s of gold-standard medical trials for over a decade

Randomized Controlled Trials (RCTs) are the gold standard of medical research as random assignment approach helps eliminate bias and yields the most reliable evidence on whether a treatment truly works. Since RCTs sit at ...

Apr 17, 2026