Medical Xpress news

A new study, published in Neurology Open Access, shows an association between three common vascular risk factors and the amount of dementia-free time people experience after age 55. The study hints that dementia is not inevitable ...

For 20 years, the grid cell was the closest thing neuroscience had to a fixed point. May-Britt Moser and Edvard Moser found them in the rat brain in 2005, work that nine years later would carry them to the king's table in ...

For many who have struggled to learn a new language or instrument, it's a familiar pattern: They make rapid progress at first, then hit a plateau that no amount of diligent practice or concentration seems to break.

The brain's immune system has long been thought to exist independently from the rest of the body, complete with its own specialized immune cells and a blood-brain barrier that limits what can travel into the brain.

The encouraging results of the world's first trial of a fridge-free tetanus-diphtheria vaccine could improve access worldwide to crucial treatments while reducing carbon emissions. Fridge-free vaccines have the potential ...

In iScience, scientists outline how they developed a method for generating personality assessment questionnaires with ChatGPT from any source text. To test the method, they applied it to both the DSM-5 and, as a deliberately ...

A protein named tau, which has been strongly implicated in the world's No. 1 cause of dementia—Alzheimer's disease—and several other neurodegenerative disorders, may spur these diseases in a way that differs greatly from ...

Scientists have reconstructed the complete genome of a real person, with full sets of chromosomes from each parent, a breakthrough expected to advance research, improve the diagnosis of genetic diseases and make personalized ...

Why do women, on average, live longer than men yet often face a greater burden of chronic disease later in life? Why do some of the most fertile animals in nature, including queen bees and naked mole-rat queens, also live ...

As women get older, their uterine environment changes. This includes a decrease in a beneficial bacterium called Lactobacillus gasseri, which may make conception—whether natural or via in vitro fertilization—difficult. In ...

To study complex diseases like Alzheimer's, scientists and clinicians analyze how genes change and malfunction in other species. Marmosets, a species of tiny monkey from South America, have become an important animal model ...

About 2 meters (6.6 feet) of genetic material must fit into the nucleus of each of most of our trillions of cells, coiling and winding to form what looks like a tangled mess. But when genes are used, how they are used and ...