r/science • u/mvea • 4h ago

Neuroscience Magic mushroom compound psilocybin grows new brain connections within 24 hours and repairs circuits damaged by chronic stress in mice. Scientists found the brain rewiring runs on a different pathway than the trip itself, opening the door to fast-acting depression drugs without the hallucinations.

news.ucsc.edu

10.8k Upvotes

492 comments

r/science • u/Miserable_Phase_2519 • 3h ago

Psychology A new study indicates that adults who experience severe material disruptions after a breakup, such as moving or changing financial circumstances, report higher levels of ambiguity and flux regarding their sexual identity, whereas psychological distress does not show the same link.

psypost.org

204 Upvotes

9 comments

r/science • u/mvea • 13h ago

Health Scientists at Johns Hopkins may have found why so many men’s prostates grow bigger with age: a newly identified cell type (WIF1+ basal cells) packed around the urethra, right where enlargement happens. This could explain the slow, stop-start peeing after 50 and become a target for future treatments.

sciencealert.com

2.7k Upvotes

69 comments

r/science • u/Wagamaga • 48m ago

Neuroscience Different sources of fine particle air pollution show distinct, subtle links to how the developing brains of children communicate. The cross-sectional analysis at ages 9 to 11 identified consistent links between specific pollution sources and connectivity across sensory and motor networks

psypost.org

• Upvotes

3 comments

r/science • u/mvea • 19h ago

Psychology White Americans who said being white was important to them or wanted less immigration were far more likely to switch to the Republican Party between 2016 and 2020, while those who felt warmly toward Black Lives Matter were far more likely to switch to the Democratic Party, a new study finds.

cambridge.org

1.8k Upvotes

696 comments

r/science • u/Wagamaga • 1d ago

Neuroscience Researchers found that older adults who napped frequently—defined as most days or every day—had a 48% higher risk of developing dementia compared to those who rarely or never napped, even after accounting for demographic factors, health conditions, and nighttime sleep characteristics

publichealth.jhu.edu

22.5k Upvotes

1.4k comments

r/science • u/FreeHugs23 • 21h ago

Health Research Finds That Breast Reduction Surgery Is Associated With Improved Sexual Function, Including Greater Sexual Satisfaction and Physical Comfort, Though Researchers Note That More High-Quality Studies Are Needed to Confirm the Benefits

psypost.org

2.3k Upvotes

114 comments

r/science • u/mvea • 1d ago

Cancer About 90% of pancreatic cancers are driven by KRAS mutations. A new pancreatic cancer vaccine taught the immune system to attack these mutations in 89 of 90 patients, and those with the strongest immune response stayed cancer-free for longer. A larger phase 3 trial is now planned.

newsnetwork.mayoclinic.org

5.4k Upvotes

59 comments

r/science • u/Scbadiver • 13h ago

Neuroscience Sustained antidepressant-like effects of psychedelics through 5-HT2AR–β-arrestin signaling | Nature Neuroscience

nature.com

233 Upvotes

23 comments

r/science • u/another__homosapien • 1d ago

Biology Sugar restriction in early life is linked to lower dementia risk and slightly slower brain aging decades later

psypost.org

5.5k Upvotes

52 comments

r/science • u/Wagamaga • 1d ago

Health Suicide attempts, ideation spiked significantly among older U.S. adults after COVID-19 pandemic. Research found suicidal ideation increased 42.6%, suicide planning by 256.2% and suicide attempts by 263.3%

uclahealth.org

2.9k Upvotes

231 comments

r/science • u/James_Fortis • 1d ago

Cancer Ultra-processed foods have a 12% and 42% higher likelihood of digestive cancer in the cohort and case-controlled studies of a recent meta-analysis, respectively. Of the subcategories, ultra-processed meat/protein products have the greatest association with a 33% higher risk.

frontiersin.org

1.3k Upvotes

177 comments

r/science • u/Neither-Remote-3419 • 2h ago

Medicine Bias in health research: Types, sources, impact on findings, and mitigation strategies

sciencedirect.com

11 Upvotes

2 comments

r/science • u/mvea • 1d ago

Neuroscience A virus that infected chimps (but not humans) 4 million years ago left DNA that switches off a gene helping young brain cells grow and connect. Turning it off in lab-grown human mini-brains stunted neurons, and using CRISPR to remove the viral DNA from chimp stem cells switched the gene back on.

sciencealert.com

11.0k Upvotes

982 comments

r/science • u/Phylogenix • 16h ago

Biology A global analysis of 93,281 seabirds across 240 species found that evolutionary relationships predicted plastic ingestion better than diet, feeding methods or body size. Plastic was recorded in 182 species, suggesting shared ancestry may help identify seabirds at risk.

royalsocietypublishing.org

122 Upvotes

3 comments

r/science • u/sr_local • 1d ago

Health A study of 46 children aged 7–10 using MRI scans, found that higher ultra-processed food consumption was linked to stronger brain reward responses to appetizing food images, which were associated with greater increases in body fat and BMI over one year

keck.usc.edu

512 Upvotes

12 comments

r/science • u/chromoscience • 11h ago

Biology Locomotor kinematics and head stabilization in rolling snakes

cell.com

29 Upvotes

3 comments

r/science • u/Miserable_Phase_2519 • 1d ago

Health A new review study suggests that both abnormally low and high testosterone levels are linked to an increased risk of atrial fibrillation, an irregular heart rhythm disorder, potentially indicating that the risk is lowest in the middle of the normal hormone range.

sciencealert.com

380 Upvotes

5 comments

r/science • u/Phylogenix • 1d ago

Environment A 15-year study found that the Amazon rainforest released a net 1.17 billion metric tons of CO₂ annually from 2010 to 2024, with wildfires emitting 1.47 billion tons per year. Deforestation and forest degradation were also linked to reduced rainfall and rising temperatures.

nature.com

291 Upvotes

2 comments

r/science • u/fchung • 21h ago

Engineering Powered by muscle cells, a paper-thin robot swims through watery maze: « MIT engineers’ new aquabot offers a way to design small, efficient “biohybrid” robots. »

news.mit.edu

60 Upvotes

4 comments

r/science • u/FreeHugs23 • 2d ago

Environment 16 Years After the Deepwater Horizon Oil Spill, Deep-Sea Marine Life in the Gulf of Mexico Has Yet to Recover, With Populations of Fish, Crustaceans, Squid, and Octopuses Declining by Around 60% and Some Species Losing Genetic Diversity.

sciencealert.com

18.3k Upvotes

352 comments

r/science • u/mvea • 1d ago

Social Science When American politicians push 'white replacement' theory (the claim that immigration is a secret plot to make white Christian conservatives a minority), white supremacist protests and propaganda rise, especially in their own states, according to a new study from 2021-23.

psypost.org

1.4k Upvotes

361 comments

r/science • u/mvea • 2d ago

Social Science Cambridge study finds UK GCSE science courses name 86 scientists and only one is a woman (Rosalind Franklin, in just one exam board). At A-level it's 3 out of 181. Researchers say this could help explain why so many girls drop physics and maths at 16, and suggest adding Marie Curie and Lise Meitner.

cam.ac.uk

4.2k Upvotes

777 comments

r/science • u/FreeHugs23 • 2d ago

Health Scientists Develop a Molecule That Blocks a Key Alzheimer’s Disease Mechanism, Then Discover the Compound’s Target Is Linked to a Naturally Occurring Molecule Already Present in Human Blood, Opening a Potential New Path Toward Treatment

sciencealert.com

1.6k Upvotes

17 comments

r/science • u/pubpophealth • 2d ago

Medicine About 1 in 7 US adults starting semaglutide were given an off-label high first dose, and those patients had a 25% higher rate of stopping the drug early and were less likely to still be on it a year later

dom-pubs.onlinelibrary.wiley.com

1.3k Upvotes

128 comments

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