1,338 mass shootings took place during 117th US Congress. Democrat members were more likely to tweet about guns after mass shootings than Republicans. Democrats tended to post about community, families, victims, and legislature, while Republicans post about 2nd Amendment, law enforcement, and crime.
https://www.eurekalert.org/news-releases/1109416
https://redd.it/1pp79el
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Alzheimer's disease more prevalent in older people than previously thought
https://www.nature.com/articles/s41586-025-09841-y
https://redd.it/1pp0a2s
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People diagnosed with early Alzheimer’s given the herpes medication valacyclovir actually experienced worse cognitive decline than those given a placebo | Valacyclovir Treatment of Early Symptomatic Alzheimer Disease: The VALAD Randomized Clinical Trial
https://gizmodo.com/researchers-tested-herpes-drugs-for-alzheimers-it-backfired-2000700360
https://redd.it/1pp0zii
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Scientists find the biological footprint of social anxiety may reside partially in the gut | Findings suggest that specific alterations in the gut-brain axis could contribute to the pathology of social anxiety during adolescence.
https://www.psypost.org/scientists-find-the-biological-footprint-of-social-anxiety-may-reside-partially-in-the-gut/
https://redd.it/1povyuk
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ADHD is a circadian rhythm disorder, according to Frontiers paper
https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1697900/full
https://redd.it/1poudmm
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Autistic people have significantly higher risk of diabetes, hypertension, dyslipidemia, stroke, and heart failure in a peer-reviewed study. The authors underscore the importance of monitoring cardiometabolic health within the ASD population.
https://www.nature.com/articles/s44220-025-00546-9
https://redd.it/1pom3x8
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A research reveals that people take a dim view of others' professed neutrality on controversial issues, rating them just as morally suspect as those expressing an opposing viewpoint. However, participants overwhelmingly opted to be publicly neutral when faced with a controversial issue themselves.
https://www.rotman.utoronto.ca/news-events-and-ideas/news-and-stories/2025/december/20251216/
https://redd.it/1pog7ce
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Biologists discover neurons use physical signals — not electricity — to stabilize communication
https://dornsife.usc.edu/news/stories/synapse-stability-governed-by-physical-signals-not-electrical/
https://redd.it/1poeuem
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For decades, economists framed climate change as a future cost. New research shows it is already here: it has cut U.S. income by an estimated 12%. Much of the damage comes not from disasters, but from rising temperatures quietly rippling through prices, productivity, and trade nationwide.
https://www.pnas.org/doi/10.1073/pnas.2504376122
https://redd.it/1pochiu
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The potential of H5N1 viruses to adapt to bovine cells varies throughout evolution - Nature Communications
https://www.nature.com/articles/s41467-025-67234-1
https://redd.it/1po3w4w
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Psilocybin shown to markedly reduce chronic pain and neuroinflammation. In animals this is firmly established with durable antinociception, and limited human studies showing the same outcome via synaptogenesis, 5-HT2A receptor modulation, and affective pain processing in a peer reviewed review
https://www.mdpi.com/2076-3271/13/4/277
https://redd.it/1po6tjd
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Periods may make sport injuries more severe and slow down recovery time
https://www.newscientist.com/article/2508607-your-period-may-make-sport-injuries-more-severe
https://redd.it/1pnx7ke
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These Italian brown bears have changed their behaviour due to close interaction with humans
https://www.euronews.com/green/2025/12/16/these-italian-brown-bears-have-changed-their-behaviour-due-to-close-interaction-with-human
https://redd.it/1pnx0om
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Bath salts trigger damaging surges of Reactive Oxygen Species (ROS) that drive heart cell demise. In a peer-reviewed in vitro study, synthetic cathinones sold as bath salts caused severe oxidative stress and ROS accumulation in heart cells, overwhelming mitochondrial function and causing cell death.
https://www.mdpi.com/2305-6304/13/11/998
https://redd.it/1pnq27z
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Long-term exposure to polluted air significantly weakens the positive health effects of regular physical activity, according to a global study of over one million adults followed for more than a decade, revealing sharp declines in benefits at annual PM2.5 levels ≥25 μg/m³—affecting 46% worldwide.
https://link.springer.com/article/10.1186/s12916-025-04496-y
https://redd.it/1pnis65
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Study Illuminates How an Antiviral Defense Mechanism May Lead to Alzheimer’s Disease
https://www.massgeneralbrigham.org/en/about/newsroom/press-releases/antiviral-defense-mechanism-may-lead-to-alzheimers-disease
https://redd.it/1pozi6y
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83% of autistic children and adolescents suffer from life-disruptive sleep disorders including difficulty falling asleep, night walking, night terrors, movement during sleep, and reduced sleep duration, which exacerbate autistic symptom severity, in a peer-reviewed systematic review
https://www.mdpi.com/2039-7283/15/11/201
https://redd.it/1pp22aa
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First-in-human clinical trial of personalized, biomaterial-based cancer vaccine demonstrates feasibility, safety, and immune activation
https://wyss.harvard.edu/news/first-in-human-clinical-trial-of-personalized-biomaterial-based-cancer-vaccine-demonstrates-feasibility-safety-and-immune-activation/?fbclid=PAb21jcAOvgP5leHRuA2FlbQIxMQBzcnRjBmFwcF9pZA81NjcwNjczNDMzNTI0MjcAAaeQviNoI3xZr7eukumW-aP3TXWSuG4o5DXf505rK85oKYOVbjruLDmaZir9_A_aem__srsxBWs2OAVauFynNVDag
https://redd.it/1povbb0
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The thought processes of cheaters closely resemble those of criminals, study suggests. Researchers found that individuals often turn to infidelity to cope with life stressors, utilize calculated strategies to avoid detection, and employ specific psychological justifications to alleviate guilt.
https://www.psypost.org/the-thought-processes-of-cheaters-closely-resemble-those-of-criminals-study-suggests/
https://redd.it/1pottvj
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Frog gut bacterium eliminates cancer tumors in mice with a single dose: Single shot of E. americana intravenously to mice with colorectal cancer completely eliminated tumors in every treated animal, with ongoing protection. When mice were later re-exposed to cancer cells, none developed new tumors.
https://newatlas.com/cancer/frog-reptile-microbes-cancer/
https://redd.it/1porgtp
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Researchers at MIT and Stanford University have developed a new way to stimulate the immune system to attack tumor cells by disabling sugar-based immune “brakes” on cancer cells, a strategy that could extend the benefits of immunotherapy to many more patients.
https://www.nature.com/articles/s41587-025-02884-6
https://redd.it/1pogxza
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A 47-year Swedish study shows that fitness, strength, and endurance begin declining around age 35, even with regular training. However, adults who start exercising later still improve physical capacity by 5–10%, proving it’s never too late to begin.
https://onlinelibrary.wiley.com/doi/10.1002/jcsm.70134
https://redd.it/1pogjse
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Couples share a unique form of contagious forgetting, new research suggests. Partners synchronize their brain activity during storytelling, this neural alignment leads to a specific type of shared forgetting that does not occur between strangers.
https://www.psypost.org/couples-share-a-unique-form-of-contagious-forgetting-new-research-suggests/
https://redd.it/1pocd76
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Scientists may have developed “perfect plastic”: Plant-based, fully saltwater degradable, zero microplastics. Made from plant cellulose, the world’s most abundant organic compound. Unlike other “biodegradable” plastics, this quickly degrades in salt water without leaving any microplastics behind.
https://www.eurekalert.org/news-releases/1110174
https://redd.it/1pocg7y
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Reducing social isolation protects the brain in later life, and this is valid regardless of gender, race, ethnicity and educational level with only minor differences among social categories
https://news.st-andrews.ac.uk/archive/reducing-social-isolation-protects-the-brain-in-later-life/
https://redd.it/1po7guq
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Researchers have found a way to considerably boost the lifespan of lithium-ion batteries for EVs and other uses. Adding a mere 0.5 mole percent of tantalum oxide to the cathode material slashes the rate of capacity decay per cycle in half, paving the way for more durable, high-energy batteries.
https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.202523170
https://redd.it/1po4806
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Gum disease is associated with increased risk of cardiovascular events, including heart attack, stroke, atrial fibrillation, heart failure and cardiometabolic health conditions. Effective prevention and treatment of gum disease could potentially decrease the burden of cardiovascular disease.
https://newsroom.heart.org/news/gum-disease-may-be-linked-to-plaque-buildup-in-arteries-higher-risk-of-major-cvd-events
https://redd.it/1pnz86o
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Combined evidence from artificial neural networks and human brain-lesion models reveals that language modulates vision in human perception
https://www.nature.com/articles/s41562-025-02357-5
https://redd.it/1pnrkan
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Recent LSD use linked to lower odds of alcohol use disorder | This finding stands in contrast to the use of other psychedelic substances, which did not show a similar protective link in the past year.
https://www.psypost.org/recent-lsd-use-linked-to-lower-odds-of-alcohol-use-disorder/
https://redd.it/1pnhx18
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The more tech savvy you are, and if you are a millennial or are more educated, the more digital concerns you have over privacy, misinformation, and work-life balance in the digital age, finds a new study of nearly 50,000 people in 30 countries.
https://newsroom.taylorandfrancisgroup.com/tech-savvy-users-have-most-digital-concerns/
https://redd.it/1pnijzl
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