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Understanding the human eye's resolution limit and its effect on viewing experience

Is your ultra-high-definition television really worth it? Do you need a 4K or an 8K screen to get the best viewing experience at home?

27 Oct 2025

Scientists uncover excessive maturation and aging in the hippocampus

In a groundbreaking study, researchers at Fujita Health University and the Tokyo Metropolitan Institute of Medical Science have uncovered a previously overlooked form of brain abnormality linked to anxiety: excessive maturation and aging in the hippocampus, a state they term "hyper-maturity."

27 Oct 2025

Intraoperative music therapy reduces anesthetic use and physiological stress

A groundbreaking study published in the peer-reviewed journal Music and Medicine demonstrates that intraoperative music therapy significantly reduces the amount of propofol and fentanyl required during laparoscopic cholecystectomy performed under general anesthesia.

27 Oct 2025

Study provides a "bird's eye view" of the brain and its functions

A new study provides the best evidence to date that the connection patterns between various parts of the human brain can tell scientists the specialized functions of each region.

27 Oct 2025

Adequate support needed to address Canada's rising youth opioid use

Youth opioid use is increasing in Canada, as are related emergency department visits and deaths, yet governments are not providing adequate support to address this public health crisis, argue the authors of a CMAJ.

27 Oct 2025

Research shows a decline in opioid dispensing across Canadian provinces

Efforts to promote safer opioid prescribing in Canada appear to be having an effect, as new research in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.250670 shows a decrease in opioid dispensing between 2018 and 2022.

27 Oct 2025

Evaluating bed-based care for substance use disorder in Canada

Is expanding hospital inpatient, or bed-based, care a way to help address the overdose crisis? An analysis article in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.240955 describes the RE-AIM framework (Reach, Effectiveness, Adoption, Implementation, and Maintenance), which can help provinces determine whether bed-cased care is effective.

27 Oct 2025

Ancient DNA uncovers paratyphoid and relapsing fever among Napoleonic troops

Scientists from the Institut Pasteur have genetically analyzed the remains of former soldiers who retreated from Russia in 1812.

24 Oct 2025

Eliminating cockroaches drastically reduces household allergens and endotoxins

Researchers at North Carolina State University have shown a link between the size of cockroach home infestations and the levels of both allergens and endotoxins in those homes, with lowering roach infestation numbers through pest control triggering significant declines in the levels of allergens and endotoxins.

24 Oct 2025

Mitochondria and lysosomes work together to control regulatory T cell activation

Metabolism guides the activation states of regulatory T cells, the immune cells that prevent inappropriate activation of the immune system.

24 Oct 2025

New insight into TRPM3 heat sensor reveals how the body detects temperature

The ability to sense heat protects the body from burns and injury. But how the body actually feels temperature has remained an elusive mystery.

24 Oct 2025

Study unravels the genetic shield against winter vomiting disease

Winter vomiting disease is caused by the Norovirus, which is most virulent during the colder half of the year.

24 Oct 2025

New epimodulation approach improves outbreak forecasts

During an epidemic, some of the most critical questions for healthcare decision-makers are the hardest ones to answer: When will the epidemic peak, how many people will need treatment at once and how long will that peak level of demand for care last? Timely answers can help hospital administrators, community leaders and clinics decide how to deploy staff and other resources most effectively.

24 Oct 2025

Unlocking the secrets of vascular health through eye imaging

The tiny blood vessels in your eyes might hold the key to predicting a person's risk of developing heart disease and how fast they're biologically aging, according to researchers at McMaster University and Population Health Research Institute (PHRI) - a joint institute of Hamilton Health Sciences and McMaster.

24 Oct 2025

Study reveals impact of viral combinations on infant respiratory illness severity

A new study led by researchers at National Jewish Health has revealed that, while a wide range of viruses can cause lower respiratory tract illnesses (LRIs) in infants, certain viruses and viral combinations dramatically increase the risk of severe disease.

24 Oct 2025

Enhancing early diagnosis of developmental delays in Pennsylvania's children

Children who are mistreated at a young age are more likely to experience a wide range of developmental delays and health problems, according to Christian Connell, Ken Young Family Professor in Healthy Children and professor of human development and family studies at Penn State.

24 Oct 2025