Medical Xpress news

Medical Xpress / Cannabis and tobacco use linked to smaller brain volume

Cannabis and tobacco—whether used on their own or together—can affect the brain's structure. A recent study involving systematic review and meta-analysis of more than 103 studies found that both substances are linked to reduced ...

Mar 31, 2026
Medical Xpress / Premature and small births are linked to lifelong learning problems

Being born early or at a lower weight is linked to lower IQ scores and poorer educational outcomes in school and beyond, according to a new study published in the journal JAMA Pediatrics. Researchers from the UK and the Netherlands ...

Mar 31, 2026
Medical Xpress / Twin study suggests genes explain most of the link between IQ and socioeconomic status

New twin research shows that innate IQ plays a major role in predicting your future socioeconomic status. The study, which follows twins during the crucial early adult years, reinforces the view that heredity and genes shape ...

Mar 31, 2026
Medical Xpress / Cysteine pathways help T cells choose between multiplying and attacking tumors

A research team from the Johns Hopkins Kimmel Cancer Center, its Bloomberg~Kimmel Institute for Cancer Immunotherapy and the Johns Hopkins Bloomberg School of Public Health has discovered how the immune system's CD8+ T cells ...

Mar 31, 2026
Medical Xpress / Chemical compound clears misfolded tau, protects neurons in a model of frontotemporal dementia

New research from Washington University School of Medicine in St. Louis adds to growing evidence that helping brain cells break down and eliminate their own cellular waste is a promising treatment strategy for a variety of ...

Mar 31, 2026
Medical Xpress / Sleep cleans the brain: Researchers develop fast, non-invasive way to measure the process

Sleep helps the brain to cleanse itself—and now this process can be measured in humans entirely noninvasively. Researchers at the University of Oulu have developed a method that allows the increased movement of brain fluids ...

Mar 31, 2026
Medical Xpress / Scientists capture early stages of immune response inside cells

In new research, scientists at the Department of Energy's SLAC National Accelerator Laboratory, in collaboration with researchers at Harvard University and Brigham Young University, used the Stanford-SLAC Cryo-EM Center to ...

Mar 31, 2026
Medical Xpress / AI model can detect multiple cognitive brain diseases from a single blood sample

The symptom profiles of different neurodegenerative diseases often overlap, and diagnosing age-related cognitive symptoms is complex. A patient may have multiple overlapping disease processes in the brain at the same time, ...

Mar 31, 2026
Medical Xpress / Plastic additives tied to millions of preterm births worldwide

Exposure to a chemical commonly used to make plastic more flexible may have contributed to about 1.97 million preterm births in 2018 alone, or more than 8% of the world's total, a new analysis of population surveys shows. ...

Mar 31, 2026
Medical Xpress / Study maps hidden immune signals in type 1 diabetes

Type 1 diabetes researchers have made great progress in understanding the disease in the last two decades, even as a cure remains elusive. Now they have something that benefits any scientific effort. It's a map.

Mar 31, 2026
Medical Xpress / Genetic cause identified for one in four MND patients in largest ever rare variant analysis

Project MinE, an international consortium co-founded by researchers at King's College London, has identified new genetic variants that play a role in the development of motor neuron disease (MND). These findings mean that ...

Mar 31, 2026
Medical Xpress / Placing fruit and vegetables near store entrances can improve sales and diet quality

Placing fruit and vegetable sections near supermarket entrances increases the amount purchased and may improve the quality of women's diets, according to a new study published in the journal PLOS Medicine.

Mar 31, 2026