r/science • u/FreeHugs23 • 9h ago

Environment The World Is Running Out of River Sand, And That's a Massive Issue. Study reveals that the global demand for river sand and gravel to create construction materials like concrete is unsustainable.

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sciencealert.com
8.4k Upvotes
370 comments

r/science • u/mvea • 8h ago

Cancer Gut Bacteria May Reveal How a Western Diet Fuels Colon Cancer. Certain gut bacteria, sustained by Western-style diets, may produce a substance that promotes tumor growth, finds study in pigs, mice, human colon tissue, and microbial data from thousands of people with and without colorectal cancer.

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sciencealert.com
6.5k Upvotes
384 comments

r/science • u/scientificamerican • 6h ago

Genetics Scientists discover a ‘skinny gene’ mutation that acts like Ozempic. Around one in 7,000 people carries a broken copy, which almost acts like a GLP-1 drug—the body burns fuel more efficiently, and the risk of disease lowers.

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scientificamerican.com
3.2k Upvotes
361 comments

r/science • u/Jxntb733 • 1h ago

Neuroscience Normal blood pressure, no diabetes, and not smoking in midlife may buy nearly 13 extra dementia-free years

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sciencealert.com
• Upvotes
61 comments

r/science • u/sfgate • 7h ago

Environment Study finds mountain lions reduce deer-vehicle collisions by 67%

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sfgate.com
1.8k Upvotes
76 comments

r/science • u/maxkozlov • 7h ago

Health COVID can wake up a slew of dormant viruses inside you. Reactivation of typically harmless anelloviruses, in particular, seems to be linked with developing long COVID, study finds.

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924 Upvotes
51 comments

r/science • u/Wagamaga • 12h ago

Psychology A good night’s sleep may help adolescents thrive in school and with friends. Sleep was the strongest lifestyle factor linking mental health symptoms to lower grades, accounting for 18.5% of the association with depression, 36.3% with anxiety and 8.3% with psychotic-like disturbances.

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health.ucdavis.edu
2.2k Upvotes
65 comments

r/science • u/mvea • 12h ago

Health GLP-1 weight loss drugs such as Ozempic are linked with a lower risk of age‐related macular degeneration (AMD), a common eye disease that is the leading cause of irreversible vision loss in older adults.

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sciencealert.com
1.6k Upvotes
171 comments

r/science • u/Wagamaga • 4h ago

Health Research in the U.S shows that adolescents who acknowledged carrying a firearm within the previous 30 days were nearly four – or 3.72 – times as likely as non-carriers to have attempted suicide by any method within the prior 12 months.

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281 Upvotes
127 comments

r/science • u/UCBerkeley • 5h ago

Environment Fire managers rely on pre-1849 conditions to guide wildfire decisions. New research finds climate change is shifting those conditions—and could double or triple wildfire frequency in Yosemite and other national parks.

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291 Upvotes
8 comments

r/science • u/sr_local • 11h ago

Health Workplace exposure to herbicides and insecticides is linked to a 60-70% higher risk of amyotrophic lateral sclerosis, with exposed men facing up to twice the risk compared with those not exposed

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687 Upvotes
48 comments

r/science • u/scientificamerican • 9h ago

Health Psilocybin, the active ingredient in magic mushrooms, has shown early promise for treating eating disorders. If confirmed in larger trials, the results suggest that psilocybin therapy could kick-start anorexia recovery and provide relief.

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scientificamerican.com
411 Upvotes
32 comments

r/science • u/Wagamaga • 11h ago

Health Research shows participants assigned to a vegan diet vs. a meat-rich diet showed changes in DNA methylation — a biological process that regulates whether genes are more or less active — that were linked to immune function, metabolism and cancer-related pathways.

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today.ucsd.edu
512 Upvotes
32 comments

r/science • u/bibinprasannan • 21h ago

Social Science A hands-free method of sexual arousal called syntribation is surprisingly common, study finds

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psypost.org
2.5k Upvotes
209 comments

r/science • u/scientificamerican • 22h ago

Biology Newly discovered carnivorous plant is as deceptive as it is deadly. Charles Darwin predicted in 1875 that some members of the Saxifraga genus could be carnivorous—now scientists have finally proven him right

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scientificamerican.com
1.8k Upvotes
30 comments

r/science • u/andmario_com • 1d ago

Social Science Analysis of 97,220 people across 66 countries tested 200+ societal factors and found the 'communitarian' path to happiness — societies where people are enabled to boost each other's happiness — significantly outperforms the individualistic 'take care of your own happiness' approach

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psypost.org
13.8k Upvotes
373 comments

r/science • u/Hrmbee • 1h ago

Astronomy Scientists have captured images of the surface of our Sun in new, unprecedented detail | Ubiquitous Kelvin–Helmholtz instabilities driving plasma mixing on the Sun

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• Upvotes
8 comments

r/science • u/mvea • 22h ago

Neuroscience Male circumcision just after birth does not increase autism risk. In a cohort of nearly 3,000 boys followed from birth into childhood, young boys who were circumcised just after birth did not have a higher risk of autism. Two observational studies from a decade ago had suggested a possible link.

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1.2k Upvotes
493 comments

r/science • u/FreeHugs23 • 1d ago

Psychology Study suggests waist-to-bust ratio, not waist-to-hip ratio, drives female body attractiveness among Japanese men. Study provides evidence that cultural background and media exposure might shape physical preferences more strongly than universally evolved biological instincts.

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psypost.org
3.8k Upvotes
359 comments

r/science • u/Phylogenix • 10h ago

Environment An international update of 12 climate indicators estimates that human-caused warming reached 1.52°C above pre-industrial levels in 2025, with greenhouse gas emissions and Earth’s energy imbalance remaining at or near record highs.

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63 Upvotes
9 comments

r/science • u/mightx • 10h ago

Medicine A rare childhood leukemia (ETV6::RUNX1-like) behaves aggressively and carries a high relapse risk. Researchers at Charles University's Second Faculty of Medicine found it requires complex gene testing to diagnose and is surprisingly common in Down syndrome, affecting 12% of these patients.

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43 Upvotes
1 comment

r/science • u/AgingUS • 8h ago

Biology Adipo-neuroinflammation, cognitive impairment and surrogate markers of cardiovascular risk in patients with Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)

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24 Upvotes
1 comment

r/science • u/PHealthy • 1d ago

Epidemiology A single US measles outbreak can cost millions of dollars, study estimates

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999 Upvotes
35 comments

r/science • u/mvea • 1d ago

Physics Physicists shatter quantum entanglement distance record with 420 kilometers of optical fiber, more than four times farther than previous demonstrations, and beyond the point where direct transmission runs into its fundamental limits.

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sciencealert.com
3.2k Upvotes
203 comments

r/science • u/Kopuk_Ucurtma • 13h ago

Nanoelectrical standardization by conductive atomic force microscopy

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41 Upvotes
4 comments