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An interdisciplinary team including researchers at McGill University has found a range of unexpected chemical contaminants in human milk samples from Canada and South Africa. The chemicals include traces of pesticides, antimicrobials and additives used in plastics and personal-care products. The findings were published across five papers.

Study takes a holistic approach and looks at the phenomenon's broad impacts on biodiversity in North America, Europe Freshwater browning is stunting fish growth of some species, shrinking populations of others and changing the composition of fish communities, McGill-led research suggests. "Browning" refers to freshwater bodies turning tea-coloured, a phenomenon driven by higher levels of dissolved organic matter and/or higher levels of iron in the water.

There is growing evidence that GLP-1 receptor agonists and DPP-4 inhibitors have protective benefits for the brain A large McGill University study has found that two classes of medications commonly prescribed for Type 2 diabetes, both incretin-based, are associated with a reduced risk of dementia. Drawing on clinical data from more than 450,000 patients, the research adds to growing evidence that incretin-based therapies have protective benefits for the brain.

Researchers raise concerns about possible health risks for vulnerable users, point to a need for better methods and safeguards   Gamma irradiation, an industry-standard sterilization method for medicinal and recreational cannabis, does not fully eliminate toxic fungi or their chemical residues, a McGill University study has found. Current testing practices may also miss contamination, raising concerns about health risks for vulnerable users, particularly those with weakened immune systems.

Analysis of national data reveals Black children are more likely to be placed out-of-home than white children, including when case characteristics are otherwise similar Researchers who examined Canadian child welfare data found that Black children were not only investigated at a higher rate than their white peers but were also more likely to be taken from their homes, even when the only difference between cases was the child's race.

The environmentally friendly technology paves the way for advances in manufacturing and biomedical engineering Researchers in McGill's  Department of Mechanical Engineering  and at  Drexel University

Preclinical results show movement relies on a steady supply of dopamine, helping explain why current treatments work and how they could be improved  A McGill-led study is challenging a popular theory about how dopamine drives movement, a discovery that could shift how scientists think about Parkinson's disease treatments.

Data from Canada's most populous province add to emerging evidence that air pollution risks go beyond lung and heart health A new study has linked air pollution exposure and immune-system changes that often precede the onset of autoimmune diseases.

McGill-led study finds that by making production more efficient, the feed additive also reduced, on average, the amount of land and water needed for dairy herds  A new international study led by McGill University in collaboration with  Jefo Nutrition shows that supplementing dairy cow diets with microencapsulated B-vitamins can significantly reduce greenhouse gas emissions while increasing milk yield and quality.

Researchers develop a method to measure insulin function in the brain and find patterns that can identify women at higher risk McGill researchers have identified a brain function that helps explain why childhood stress raises metabolic health risks for some women later in life. A new study found that variations in the brain's insulin receptor network affect how women respond to early-life adversity.

McGill study uses new concept, relationship clarity, to explore the association between singlehood and loneliness Single people who date without a clear understanding of what they are looking for in a relationship experience more loneliness and decreased life satisfaction, McGill researchers have found.

In a study, scientists at McGill University explored the link between celibacy and loneliness using a new concept: relational clarity Single people who date without having a clear idea of what they're looking for in a relationship feel lonelier and are less satisfied with their lives. These are the findings of a McGill University study.

McGill-led research using the James Webb Space Telescope sheds new light on how planetary atmospheres evolve Using the James Webb Space Telescope (JWST), a team led by McGill researcher Vigneshwaran Krishnamurthy has observed a giant cloud of helium gas evaporating from a distant giant exoplanet called WASP-107b.

Researchers using brain imaging gain rare insight into how prenatal exposure to modern, high-THC cannabis affects brain development into adulthood McGill researchers at the Douglas Research Centre have found evidence that heavy cannabis use during pregnancy can cause delays in brain development in the fetus that persist into adulthood.

An essential "missing link" between satellite observations and ground-based phenomena could improve climate modelling of certain northern regions Using a novel methodology, a research team led by McGill University has shed light on the influence of boulders on snowmelt in mountainous northern regions, with significant implications for local water resources.

McGill researchers track boulders' influence on snow melt, watersheds using unique combination of methods Crucial 'missing link' between what satellites can observe and what actually happens on the ground could improve climate modelling in certain northern regions Thanks to their use of a unique methodology, a McGill-led research team has obtained new insights into how boulders affect snow melt in mountainous northern environments, with implications for local water resources.

Study reveals patchy clouds and shifting atmospheric layers on a free-floating planetary-mass object just 20 light-years away, offering potential insights into planet and star formation Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass brown dwarf, a type of space object that is neither a star nor a planet, existing in a category in-between.

Study of a 19th-century fossil reveals that woolly mammoths once lived much further east than previously thought A badly damaged mammoth tooth discovered almost 150 years ago on an island in Nunavut provides new insights into where these Ice Age giants lived and died. A study conducted by McGill University has led to the reclassification of the specimen, discovered in 1878.

McGill researchers identify bacteria that could provide an early warning of blue-green algae toxicity The method can be used to indicate whether further testing is needed to determine whether a lake's water is hazardous Researchers at McGill University have identified bacteria that can indicate whether a blue-green algae (cyanobacteria) bloom is likely to be toxic, offering a potential water-safety early warning system.

Researchers find those who began using cannabis regularly before age 15 were more likely to seek care for depression, anxiety, suicidal thoughts and physical health problems as young adults Adolescents who start using cannabis early and often are more likely to need health care for both mental and physical problems as they enter adulthood, according to a new study led by McGill researchers.