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229 stories in this category
ScienceDaily · 22 Sept 2026 · Research
Researchers have found evidence that long COVID may damage dopamine releasing neurons in the brain, potentially explaining persistent fatigue, low motivation, slowed movement, and memory difficulties. The discovery could lead to new treatments that target the brain's dopamine system.
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ScienceDaily · 22 Sept 2026 · Research
Stem cell transplants helped regenerate stroke-damaged brain tissue in mice, producing new neurons and restoring lost motor function. The treatment also improved blood vessels, inflammation, and the blood-brain barrier, raising hopes that a similar approach could eventually help repair the human brain after stroke.
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Tulane University / News-Medical · 22 Sept 2026 · Research
Study (observational). Wang, Lu Qi, and colleagues report in Nature Communications (doi 10.1038/s41467-026-74498-8; Tulane note 22 September 2026) on 277,489 adults aged 40 to 69 who were free of seven major chronic conditions at the start. From age 50, people with both loneliness and social isolation had fewer years free of physical disease than people with neither: about 2.4 fewer years in women and 1.7 in men. Years free of mental disorders fell more: about 3.7 in women and 5.8 in men. A healthier pattern of daily habits narrowed the years lost with social isolation, but it did not clearly shrink the extra risk tied to loneliness. Isolation here is how many connections someone has; loneliness is dissatisfaction with those ties. Observational, not a trial. Educational research notes.
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ACSM · 22 Sept 2026 · Research
To address concerns surrounding the upcoming CAAHEP accreditation requirements for ACSM-EP and ACSM-CEP exams, the ACSM Certification Board recognizes two in-process stages along the accreditation pathway to ensure graduating students remain eligible without waiting for full programmatic accreditation.  If your institution is currently working through these updates, understanding these two milestones can help yo
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ScienceDaily · 21 Sept 2026 · Research
Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation levels faced a 43% greater risk of heart attack and stroke, raising hopes that earlier testing and anti-inflammatory treatments could help prevent serious heart disease.
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ScienceDaily · 21 Sept 2026 · Research
Scientists have found that the human brain develops from two distinct cellular systems, suggesting that evolution fused together two ancient nervous systems with very different jobs. The discovery also allowed researchers to grow human hindbrain neurons in the lab, opening new possibilities for studying ALS, spinal muscular atrophy, and other brainstem diseases.
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ScienceDaily · 20 Sept 2026 · Research
Ancient DNA reveals that plague repeatedly returned to Europe for more than 400 years after the Black Death, evolving into new lineages and spreading through trade, migration, and war. Researchers also developed a method to date ancient plague genomes more precisely, linking many of them to specific outbreaks recorded in historical sources.
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ScienceDaily · 20 Sept 2026 · Research
A growing Bundibugyo virus outbreak is showing how a little-known relative of Ebola can become a major threat when diagnosis and treatment options are limited. Experts warn that preparing only for familiar pathogens could leave the world vulnerable when rare but deadly viruses suddenly reemerge.
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ScienceDaily · 19 Sept 2026 · Research
Scientists have identified the genetic cause behind the mysterious AnWj blood group antigen, solving a puzzle that began in 1972 and establishing a new blood group system called MAL. The discovery could make it much easier to find extremely rare AnWj-negative patients and donors and protect them from potentially dangerous transfusion reactions.
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ScienceDaily · 18 Sept 2026 · Research
Scientists discovered a population of cells that can start the process of programmed cell death, survive it, and then help rapidly rebuild damaged tissue. Their descendants become far more resistant to future damage, revealing a mechanism that could improve healing but may also help cancers return after treatment.
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EurekAlert · 18 Sept 2026 · Research
Study (observational). MRC Laboratory of Medical Sciences and Imperial College London researchers report on nearly 500,000 UK adults that chronic inflammation measured by glycoprotein acetyls (GlycA), tied to socioeconomic disadvantage and psychological distress as well as smoking and excess body fat, was linked to structural heart changes and later events. People in the top 20% of GlycA had a 43% higher risk of heart attack and stroke than the bottom 20%, including those without prior heart disease. Association, not a stress-cure. Educational research notes, not medical advice.
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ScienceDaily · 17 Sept 2026 · Research
Scientists discovered that brain-cell axons may not be smooth tubes as textbooks have shown for more than a century, but instead naturally resemble strings of tiny pearls. Those pearl-like structures can change with neural activity and may help control how quickly electrical signals travel through the brain.
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