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No evidence to support link between violent video games and behaviour - Researchers at the University of York have found no evidence to support the theory that video games make players more violent. (york.ac.uk)

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LED lights found to kill coronavirus efficiently, quickly, and cheaply, a global first in fight against COVID-19. The finding suggests the UV-LEDs can be installed in air conditioning and water systems. It requires less than half a minute to destroy more than 99.9% of coronaviruses. (aftau.org)

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Engaging in physical and mental self-pleasure before going to bed is associated with falling asleep faster, enjoying better sleep quality, and experiencing more positive emotions upon waking. by mvea in science

[–]mvea[S] 291 points292 points  (0 children)

Self-pleasure before bed is linked to falling asleep faster and sleeping better

Engaging in physical and mental self-pleasure before going to bed is associated with falling asleep faster, enjoying better sleep quality, and experiencing more positive emotions upon waking. People who regularly engage in the practice immediately before sleep are also slightly more likely to report having erotic dreams. These findings were published recently in the journal Sexuality & Culture.

https://link.springer.com/article/10.1007/s12119-026-10578-7

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Engaging in physical and mental self-pleasure before going to bed is associated with falling asleep faster, enjoying better sleep quality, and experiencing more positive emotions upon waking. (psypost.org)

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Given permission to use AI, most college students show surprising restraint in their final essays. Students largely rely on AI for brainstorming and research rather than having it write essays for them wholesale. by mvea in science

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Given permission to use AI, most college students show surprising restraint in their final essays

When given permission and guidance to use artificial intelligence tools in college writing classes, students largely rely on the software for brainstorming and research rather than having it write essays for them wholesale. These findings, published in the Journal of Writing Research, suggest that students employ computerized text generators selectively to augment their learning process. The study also revealed unexpected differences in how non-native English speakers use the technology compared to their peers.

Students most frequently used the chat function to ask for help with revision, such as making sentences shorter or altering the tone. This accounted for about a quarter of the total prompts. Another highly common use was asking the program to explain course materials, define concepts, or clarify academic readings. When researchers grouped the prompts, they noticed that students asked the software to give them advice, resources, or explanations far more often than they asked it to produce text.

The chat logs also revealed a timeline of how students engaged with the tool as their assignments progressed. Most students began their interactions by asking the artificial intelligence for help with planning and locating sources. Prompts asking the machine to produce and compose writing usually occurred in the final quarter of the chat session. This indicates that direct text generation only happened after a long conversation tackling traditional phases of the drafting process.

When the team looked at the actual submitted papers, the data showed high levels of restraint among the writers. More than half of the students who participated in the pilot program chose not to include any verbatim machine-generated text in their final drafts. Across all 50 analyzed papers, only 8.2 percent of the total submitted words were flagged in blue to indicate artificial intelligence authorship. This usage fell well below the generous half-allowance permitted by the instructors.

When students did choose to paste text directly from ChatGPT into their papers, they rarely dropped in entire block paragraphs. Only about six percent of the blue text consisted of wholesale paragraph chunks. Instead, students mostly wove small, machine-generated phrases into their own original writing. The most common rhetorical purpose for incorporating this generated text was to help with discussion, analysis, and synthesis of ideas.

https://www.jowr.org/jowr/article/view/1762

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Given permission to use AI, most college students show surprising restraint in their final essays. Students largely rely on AI for brainstorming and research rather than having it write essays for them wholesale. (psypost.org)

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New compound repairs vital waste-clearing pump at blood-brain barrier, restores memory and clears toxic Alzheimer’s proteins. The brain can finally clear out trapped waste. Over 56 days in an Alzheimer’s mouse model, it reduced toxic amyloid-beta by 42% and improved spatial learning by nearly 44%. by mvea in science

[–]mvea[S] 809 points810 points  (0 children)

Copper drug restores memory and clears toxic Alzheimer’s proteins

Monash University researchers have found in laboratory experiments that a drug which delivers copper to the brain significantly reduces toxic Alzheimer’s proteins and improves long-term spatial memory.

The study, published today in the journal ACS Chemical Neuroscience, shows the compound Cu(ATSM) repairs a vital waste-clearing pump at the blood-brain barrier – unlocking a potential new avenue of therapeutics targeting neurovascular dysfunction, caused by one of the world’s leading causes of death.

Alzheimer’s is driven by the buildup of toxic proteins called amyloid-beta. Normally, the brain flushes these out into the bloodstream through the blood-brain barrier. In Alzheimer’s, the pumps doing the heavy lifting, called P-glycoprotein (P-gp), weaken significantly, clogging the drain and trapping the toxic proteins in the brain.

“This is the first study to show that Cu(ATSM) can increase the abundance of P-gp clearance pumps in an Alzheimer’s model, by 24.1 per cent, effectively linking the repair of the blood-brain barrier to a reduction in toxic proteins and improved cognitive function,” Dr Pyun said.

“By improving the pumps, the brain can finally clear out the trapped waste. Over 56 days, the treatment reduced toxic amyloid-beta by 42 per cent and improved spatial learning by nearly 44 per cent.”

https://pubs.acs.org/doi/10.1021/acschemneuro.6c00252

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New compound repairs vital waste-clearing pump at blood-brain barrier, restores memory and clears toxic Alzheimer’s proteins. The brain can finally clear out trapped waste. Over 56 days in an Alzheimer’s mouse model, it reduced toxic amyloid-beta by 42% and improved spatial learning by nearly 44%. (monash.edu)

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Dangerous hormone-disrupting chemicals found in US breast milk samples, including BPA, BPS, melamine, cyanuric acid, and triclosan. About 92% of 50 samples were contaminated with at least one of the anti-microbials or plasticizers for which researchers checked. by mvea in science

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Dangerous hormone-disrupting chemicals found in US breast milk samples

Study of mothers in Seattle underscores ‘widespread, systemic problem’ of chemical contamination, experts say

Breast milk samples from mothers in Seattle contain alarming levels of dangerous hormone-disrupting chemicals, including BPA, BPS, melamine, cyanuric acid, and triclosan, new peer-reviewed research has found.
The chemicals present a serious risk to infants because they likely interfere with hormones that are critical to newborns’ proper development, and have been found to be harmful at very low levels of exposure. About 92% of 50 samples were contaminated with at least one of the anti-microbials or plasticizers for which researchers checked.

The same milk samples had previously been found to contain potentially dangerous levels of PFAS “forever chemicals” and flame retardants, which are also endocrine disruptors.

The cocktail of endocrine-disrupting chemicals is “concerning for a number of reasons”, said Ryan Babadi, a lead author of the peer-reviewed study, and senior scientist with the Toxic Free Future nonprofit.

https://www.nature.com/articles/s41370-026-00844-z

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Dangerous hormone-disrupting chemicals found in US breast milk samples, including BPA, BPS, melamine, cyanuric acid, and triclosan. About 92% of 50 samples were contaminated with at least one of the anti-microbials or plasticizers for which researchers checked. (theguardian.com)

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A single dose of psilocybin, paired with psychological support, provides months of relief from chronic suicidal thoughts in new study. Psychedelic-assisted therapy tends to offer lasting relief for individuals who have not responded to standard psychiatric treatments. by mvea in science

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A single dose of psilocybin provides months of relief from chronic suicidal thoughts in new study

A recent study published in The Journal of Clinical Psychiatry suggests that a single dose of psilocybin, paired with psychological support, may rapidly and safely reduce chronic suicidal thoughts in adults with severe depression. The findings provide evidence that psychedelic-assisted therapy tends to offer lasting relief for individuals who have not responded to standard psychiatric treatments.

The researchers found large and statistically significant reductions in suicidal thoughts by the primary endpoint at week three. Participants experienced an average drop of almost fourteen points on the suicidal ideation scale. The improvement was rapid, with significant reductions appearing just one week after the dosing session. These benefits were highly durable, maintaining their significance through the final twelve-week assessment.

By the third week, seventy-five percent of the participants met the criteria for a positive anti-suicidal response, meaning their suicidal ideation scores dropped by at least half. Additionally, forty-five percent of the participants achieved full remission of their suicidal thoughts. Depression scores followed a similar trajectory, dropping significantly and remaining low across the entire twelve-week follow-up period.

https://www.psychiatrist.com/jcp/efficacy-safety-single-dose-psilocybin-chronic-suicidal-ideation-open-label-trial/

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A single dose of psilocybin, paired with psychological support, provides months of relief from chronic suicidal thoughts in new study. Psychedelic-assisted therapy tends to offer lasting relief for individuals who have not responded to standard psychiatric treatments. (psypost.org)

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A third grader’s afternoon restlessness predicts their chances of finishing college. Children who can sustain their behavioral control for longer periods tend to achieve more in high school and complete more years of education as adults. by mvea in science

[–]mvea[S] 15 points16 points  (0 children)

How a third grader’s afternoon restlessness predicts their chances of finishing college

A recent study published in Developmental Psychology suggests that a child’s ability to control their physical movement tends to wear down as the school day progresses. This steady decline is linked to their long-term academic success. By tracking elementary students with wearable devices, researchers found that children who can sustain their behavioral control for longer periods tend to achieve more in high school and complete more years of education as adults.

https://psycnet.apa.org/record/2027-78561-001?doi=1

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A third grader’s afternoon restlessness predicts their chances of finishing college. Children who can sustain their behavioral control for longer periods tend to achieve more in high school and complete more years of education as adults. (psypost.org)

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Being seen as unattractive as a teen is linked to an earlier death for women, but not for men. Physical attractiveness could serve as an observable indicator of underlying health and physiological resilience. by mvea in science

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Being seen as unattractive as a teen is linked to an earlier death for women, but not for men

A recent study published in the journal Applied Research in Quality of Life suggests that physical appearance during adolescence might predict long-term survival rates into young adulthood. The research indicates that individuals who are perceived as physically unattractive during their teenage years tend to have lower odds of survival over the next few decades compared to their more attractive peers. These findings provide evidence that physical attractiveness could serve as an observable indicator of underlying health and physiological resilience.

https://link.springer.com/article/10.1007/s11482-026-10616-4

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Being seen as unattractive as a teen is linked to an earlier death for women, but not for men. Physical attractiveness could serve as an observable indicator of underlying health and physiological resilience. (psypost.org)

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Cognitive benefits of reading physical books: Reading comic books on physical paper helps brain absorb and connect story details more easily than reading on a digital tablet. Physical books provide spatial and tactile cues that lower brain’s workload when trying recall plot points later. by mvea in science

[–]mvea[S] -4 points-3 points  (0 children)

Neuroscientists discover previously unknown cognitive benefits of reading physical books

A new study published in the journal PLOS ONEprovides evidence that reading comic books on physical paper helps the brain absorb and connect story details more easily than reading on a digital tablet. The findings suggest that physical books provide stable spatial and tactile cues that lower the brain’s workload when a reader tries to recall complex plot points later. This research offers fresh insights into how digital reading formats might subtly alter human reading comprehension and memory.

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0349778

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Cognitive benefits of reading physical books: Reading comic books on physical paper helps brain absorb and connect story details more easily than reading on a digital tablet. Physical books provide spatial and tactile cues that lower brain’s workload when trying recall plot points later. (psypost.org)

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Democrats rejected Trump’s speaking style more than Republicans rejected Harris’s. Voters show different levels of tolerance toward opposing political candidates, with Donald Trump facing significantly more rejection from rival voters than Kamala Harris. by mvea in science

[–]mvea[S] -14 points-13 points  (0 children)

Democrats rejected Trump’s speaking style more than Republicans rejected Harris’s

A recent study published in the American Behavioral Scientist suggests that American voters judge the communication styles of the Democratic and Republican parties in highly unequal ways. The research provides evidence that voters show different levels of tolerance toward opposing political candidates, with Donald Trump facing significantly more rejection from rival voters than Kamala Harris.

“Intolerance toward political communication is not symmetrical across the political spectrum,” Vila-Boix noted. “We found that Republican voters were generally more tolerant of the Democratic communication style than Democratic voters were of the Republican style. Furthermore, Kamala Harris enjoyed significantly higher levels of acceptance and tolerance among both her supporters and rival voters compared to Donald Trump.”

Both Democrats and Republicans showed an overall tolerance level of around 90 percent for their own side. However, the intensity of this support varied. About 33 percent of Democratic voters found their party’s communication completely acceptable. In contrast, Republican voters were more evenly split, with many choosing a neutral response rather than full acceptance.
When looking at the specific candidates, the scientists found that Kamala Harris enjoyed higher approval from her own base than Donald Trump did from his. About 86 percent of Democratic voters accepted Harris’s communication style. On the other hand, Trump’s acceptance rate among Republican voters sat at 72 percent.

“We were surprised by the extreme level of ‘Complete Rejection’ among Democrats toward Donald Trump’s communication style (69%), in comparison with the Republicans’ complete rejection of Harris’s style (41%),” Vila-Boix said.
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The data indicated that Republican voters hardly differentiate between Donald Trump and the broader party. For Democrats, voters accepted Kamala Harris’s communication style more than that of the Democratic Party itself. This pattern suggests that Harris possessed a personal appeal that outpaced her party’s institutional reputation.

“Additionally, Harris showed a ‘charismatic leadership’ effect, where her personal communication style was perceived more favorably than the Democratic Party as an institution, even among some rival voters,” Vila-Boix said.

https://journals.sagepub.com/doi/10.1177/00027642261431492

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Democrats rejected Trump’s speaking style more than Republicans rejected Harris’s. Voters show different levels of tolerance toward opposing political candidates, with Donald Trump facing significantly more rejection from rival voters than Kamala Harris. (psypost.org)

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Subterranean fungi networks more than 100 quadrillion km in length, study finds. First ever global mapping of arbuscular mycorrhizal fungi shows scale of hyphal systems that sustain plant life. If stretched end to end, they would reach a length of almost 750m times distance from Earth to the sun. by [deleted] in science

[–]mvea 11 points12 points  (0 children)

Subterranean fungi networks more than 100 quadrillion km in length, study finds

First ever global mapping of arbuscular mycorrhizal fungi shows scale of hyphal systems that sustain plant life

Our planet’s soils contain enough of the subterranean fungi that sustain plant life and help regulate the climate to stretch from the Earth to the sun almost three-quarters of a billion times, a groundbreaking new study has found.
Arbuscular mycorrhizal fungi are networks of tubular cells called hyphae that sustain life on Earth by forming critical partnerships with more than 70% of plants. The networks, which have been forming for about 475 million years, provide nutrients and water in exchange for the carbon produced by the plants, and help to regulate the climate by drawing carbon into soils.

And yet, despite their importance, very little is known about their distribution and density across natural ecosystems. This was one of the reasons that the Society for the Protection of Underground Networks (Spun) was set up in 2021 by a global network of scientists and researchers.

Now, in a new study published in Science* *andreferred to as “one of the most exciting of my career” by one researcher, a Spun team have used machine-learning models with data from more than 16,000 soil cores from around the world to produce the first ever global map of arbuscular mycorrhizal fungi networks.

They calculated that the fungi networks, if stretched end to end, would reach a length of 110 quadrillion kilometres, which is almost 750m times the distance from the Earth to the sun.

“There could be up to 10 metres (32ft) of mycorrhizal network in just a teaspoon of soil,” said Dr Justin Stewart, lead author of the study.

https://www.science.org/doi/10.1126/science.adu4373

Depression isn’t just in the head: Scientists find altered genetic activity in white blood cells. This provides evidence that the biological footprints of depression extend well beyond the brain and into the immune system, offering a whole-body perspective on the condition. by mvea in science

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Depression isn’t just in the head: Scientists find altered genetic activity in white blood cells

A recent study published in Scientific Reports* *suggests that white blood cells in people with major depressive disorder show altered activity in genes typically associated with brain connections. This provides evidence that the biological footprints of depression extend well beyond the brain and into the immune system, offering a whole-body perspective on the condition.

https://www.nature.com/articles/s41598-026-39284-y

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Depression isn’t just in the head: Scientists find altered genetic activity in white blood cells. This provides evidence that the biological footprints of depression extend well beyond the brain and into the immune system, offering a whole-body perspective on the condition. (psypost.org)

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Employer points systems, which penalize American workers for absences regardless of reason, are strongly associated with presenteeism, practice of showing up to work while sick. This undermines public health benefits of paid sick leave laws even in jurisdictions where protections are on the books. by mvea in science

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New study finds points systems drive sick workers to show up, undermining paid sick leave laws

Harvard, UC Berkeley, Stony Brook, and Wayne State researchers find employer attendance penalty systems push service workers to work while sick, even when protected by law

A new study finds that employer points systems, which penalize workers for absences regardless of the reason, are strongly associated with presenteeism, the practice of showing up to work while sick, and that these systems undermine the public health benefits of paid sick leave laws even in jurisdictions where such protections are on the books. Published in the June 2026 issue of Health Affairs, the research, Points-Based Attendance Systems Associated With Presenteeism Despite Paid Sick Leave Protections, draws on 2024 survey data from more than 3,000 hourly service-sector workers at 63 large U.S. firms.

Points-based attendance systems are policies under which employees accumulate points, occurrences, or demerits for being late, leaving early, or missing work for any reason, including illness, with consequences that can include termination. These systems are widespread among large retail, grocery, pharmacy, fast food, and fulfillment employers. Despite growing adoption of paid sick leave laws at the state and local level, nearly half of workers in the study reported being subject to a points system, regardless of whether their employer operated in a jurisdiction with a paid sick leave mandate.

https://www.healthaffairs.org/doi/10.1377/hlthaff.2025.00995

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Employer points systems, which penalize American workers for absences regardless of reason, are strongly associated with presenteeism, practice of showing up to work while sick. This undermines public health benefits of paid sick leave laws even in jurisdictions where protections are on the books. (eurekalert.org)

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