| |  A large U.S. firefighter cohort study identified personal, occupational, and department-level predictors of serum PFAS concentrations, highlighting both modifiable exposures and persistent background sources. Some protective practices, blood or plasma donation, and drinking water sources were associated with differences in specific PFAS analytes, although causal relationships require further longitudinal study. | |
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| | A new study from McMaster University involving 2.8 million children around the world has revealed the most important early-life factors that influence whether a child becomes allergic to food. | |
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| | COVID-19 vaccination is not the cause behind a decrease in childbirth, according to a study from Linköping University, Sweden. | |
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| |  Air conditioning is linked to lower mortality rates in nursing homes during extreme heat, underscoring the importance of climate control for vulnerable seniors. | |
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| |  Longitudinal data from postmenopausal women suggest that cumulative pregnancy duration and breastfeeding history are associated with modestly better cognitive performance later in life. These associations reflect higher cognitive trajectory levels rather than proven slowing of decline, and causality remains uncertain. | |
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| |  A five-year image-based study in people with type 2 diabetes found metformin use was associated with lower odds of developing intermediate age-related macular degeneration. The observational findings suggest a potential protective link but do not establish causation and warrant prospective clinical trials. | |
|
| |  Researchers at Baylor College of Medicine have uncovered a strategy that triple negative breast cancer (TNBC) cells use to boost their ability to metastasize, or spread to other organs. | |
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| |  Research indicates that many statin therapy side effects are not supported by evidence, suggesting a need for revised labeling to improve treatment decisions. | |
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| |  A Swedish registry-based cohort study evaluated whether COVID-19 vaccination affected childbirth rates among women aged 18 to 45 years during the pandemic period. No statistically significant association was found between vaccination, childbirth, or recorded miscarriage rates, suggesting demographic and socioeconomic factors likely explain observed fertility trends. | |
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| |  Following a Mediterranean diet is associated with a lower risk of all types of stroke among women, according to a study published on February 4, 2026, in Neurology Open Access, an official journal of the American Academy of Neurology. | |
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| |  A research team from the Department of Psychiatry at Tohoku University, led by Dr. Zhiqian Yu and Professor Hiroaki Tomita, has uncovered compelling evidence that maternal perinatal depression - psychological distress occurring during pregnancy or postpartum - elevates the risk of autistic-related traits in toddlers, with a particularly strong impact on girls. | |
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| |  Ovarian cancer kills more women than any other gynecological cancer. Most patients receive their diagnosis only after the disease spreads throughout the abdomen. | |
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| |  The study uncovers obesity's genetic links to chronic diseases, offering insights into multimorbidity and the potential for targeted health interventions. | |
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| |  Antonia Seligowski, PhD, of the Neurocardiac Effects of Stress & Trauma Laboratory within the Department of Psychiatry at Mass General Brigham, is the senior author of a paper published in JAMA Network Open, "Hormonal contraceptive use, stress disorders, and cardiovascular and thrombotic risk in women." | |
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| | Historical redlining, a 1930s–1960s residential segregation policy, has been linked to shorter survival time in people with breast cancer. | |
