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Medical Xpress / New study shows why some minds can't switch off at night

Australian researchers have found compelling evidence that insomnia may be linked to disruptions in the brain's natural 24-hour rhythm of mental activity, shedding light on why some people struggle to "switch off" at night.

7 minutes ago in Neuroscience
Medical Xpress / A retail approach nudges healthier choices in food relief

A University of Adelaide study, conducted in collaboration with Foodbank SA & NT, has demonstrated that strategies supermarkets commonly use to influence shopper behavior can be successfully adapted for food relief pantries.

6 minutes ago in Health
Phys.org / OLEDs can now switch light's handedness with an electrical signal

Researchers from the University of Oxford have for the first time discovered an approach to electrically switch organic LEDs (OLEDs) to emit either left- or right-handed circularly polarized light without changing the light-emitting ...

1 hour ago in Physics
Phys.org / Novel mRNA therapy curbs antibiotic-resistant infections in preclinical lung models

Researchers at the Icahn School of Medicine at Mount Sinai and collaborators have reported early success with a novel mRNA-based therapy designed to combat antibiotic-resistant bacteria.

1 hour ago in Nanotechnology
Medical Xpress / New mutation hotspot discovered in human genome

Researchers have discovered new regions of the human genome particularly vulnerable to mutations. These altered stretches of DNA can be passed down to future generations and are important for how we study genetics and disease.

1 hour ago in Genetics
Medical Xpress / Pesticides and other common chemical pollutants are toxic to 'good' gut bacteria, lab-based screening indicates

A large-scale laboratory screening of human-made chemicals has identified 168 chemicals that are toxic to bacteria found in the healthy human gut. These chemicals stifle the growth of gut bacteria thought to be vital for ...

1 hour ago in Health
Medical Xpress / AI tops density in predicting breast cancer risk

An image-only artificial intelligence (AI) model for predicting the five-year risk of breast cancer provided stronger and more precise risk stratification than breast density assessment, according to a study presented at ...

1 hour ago in Radiology & Imaging
Medical Xpress / Pro fighters risk damage to the brain's 'garbage disposal'

The brain's waste-clearing system significantly declines in function with repeated head impacts, according to a new study of cognitively impaired professional boxers and mixed martial arts fighters. The findings are being ...

1 hour ago in Neuroscience
Phys.org / Five science-backed reasons to express gratitude, according to research

When was the last time you said "thank you"—and really meant it?

1 hour ago in Other Sciences
Phys.org / After nearly 100 years, scientists may have detected dark matter

In the early 1930s, Swiss astronomer Fritz Zwicky observed galaxies in space moving faster than their mass should allow, prompting him to infer the presence of some invisible scaffolding—dark matter—holding the galaxies ...

12 hours ago in Astronomy & Space
Medical Xpress / Five things to know about staying cool in the heat

Australia is no stranger to hot weather, and Griffith University researchers have compiled five handy things to be aware of so we do not place our health at risk during the summer months.

1 hour ago in Health
Medical Xpress / Study suggests that many older women use sex toys to promote orgasm, which may promote positive health outcomes

Although research on sexuality in older adults has been growing in recent years, most of the studies are focused on partnered sexual activity and not on solo sexual behavior, including masturbation or the use of sex toys.

1 hour ago in Health