🔬 The Academy is open today from 10 AM to 5 PM, offering a dynamic range of experiences like workshops, lectures, and family-friendly events to inspire curiosity about the natural world.

📚 The Academy of Natural Sciences advances scientific understanding through original research, manages over 19 million specimens, and has a legacy of over 2 centuries of discovery since its founding in 1812.

💧 For over 80 years, the Academy has led critical research for water conservation efforts and is committed to new collaborations with Indigenous Peoples for heritage collection stewardship.

#Science #Environment #Museum

👃 A new mouse study in PNAS identifies a "nose-to-brain circuit" that may explain how nasal breathing can influence anxiety.

🧠 Researchers found that nasal airflow regulates anxiety-like behavior through a pathway starting with olfactory sensory neurons (OSNs) in the nose, signaling to the olfactory bulb, perirhinal cortex, and then the amygdala.

⚖️ The study suggests this pathway is frequency-dependent, meaning faster breathing could amplify anxiety, while slower breathing may relieve it, and a two-week regimen of controlled slow nasal airflow reduced anxiety-like behaviors in mice.

🔬 While the study used only male mice and controlled conditions, researchers believe slow nasal respiration could eventually offer a simple, noninvasive anxiety treatment for humans.

#AnxietyRelief #MentalHealth #Science

🍄 A study in PNAS reveals that the gut fungus Mucor racemosus can protect against radiation damage.

🔬 Experiments with mice showed that M. racemosus reduced weight loss, inflammation, and oxidative stress after radiation exposure.

🧬 The fungus achieves this protection through three amino acids (L-glutamic acid, L-aspartic acid, and DL-lysine) that aid DNA repair and tissue recovery, and another chemical (methylthioadenosine or MTA) that influences gut bacteria to boost radiation protection.

🧀 In one experiment, mice fed cheese fermented with M. racemosus showed reduced intestinal inflammation and improved gut barrier function.

#Science #Health #Fungi

🚽 Flushing toilets can release airborne particles, some reaching adult breathing height, potentially exposing people to disease-causing microbes.

💧 Higher microbial contamination in toilet water and larger flush volumes generally lead to more aerosols being released into the air.

💨 Aerosols can remain suspended in the air for at least 20 seconds after flushing; closing the toilet lid before flushing is recommended as a precautionary measure.

#HealthTech #Science #PublicHealth

🏃‍♂️ New research in BMC Medicine investigates how the body's natural "cannabis-like" chemicals, endocannabinoids, respond to prolonged exercise.

🩸 In a marathon study, levels of anandamide, linked to bliss, increased significantly from 8.7 miles onward, while 2-AG, associated with recovery, rose near the finish and post-race.

ultramarathon runners (100-230 km), endocannabinoid levels also increased, but surprisingly, not always higher than after a standard marathon. Exercise intensity may be more critical than duration for these chemical responses.

🤔 The "runner's high" remains elusive; elevated endocannabinoids alone don't guarantee it, and factors like extreme fatigue, pain, and individual experience play a complex role.

#runnershigh #endurance #science

🧠 Low-level alcohol consumption over a lifetime, combined with advancing age, is linked to poorer hand dexterity and balance in healthy adults, according to a study in Alcohol and Alcoholism.

⚖️ Participants taking part in a balance test performed worse with their eyes closed if they had a higher lifetime average of drinks per month, with each standard deviation increase associated with 2.3 times lower odds of perfect balance.

🚶 The study analyzed 83 healthy, non-smoking adults aged 21-69 using dexterity and balance tests.

#AlcoholResearch #Health #Science

🔬 New study suggests grandfathers' smoking and drinking habits linked to autism risk in grandchildren. Analysis of over 6,300 grandparents from the Child Health and Development Studies (CHDS) cohort (1959-1967) found increased autism diagnoses in grandchildren whose grandfathers drank 5+ servings of hard liquor or smoked 20+ cigarettes daily during their wife's pregnancy.

👶 The study, published in Autism Research, highlights a potential intergenerational impact, with grandfathers' exposures showing a stronger association than grandmothers'. Researchers are exploring germline epigenome changes as a possible mechanism.

📊 While statistically significant, the findings do not prove causation and are based on a small number of diagnosed grandchildren (86 total). Milder autism cases may be undercounted, and grandfathers' habits were reported by their wives.

#AutismResearch #Health #Science

🔥 NASA-backed scientists discovered Incendiamoeba cascadensis, a complex organism thriving at 145°F (63°C), setting a new upper temperature record for eukaryotes.

💧 This "fire amoeba" is active up to 147°F (64°C), challenging previous assumptions about the heat limits for complex life with delicate internal structures like a nucleus.

🧬 Studying such extremophiles helps astrobiologists understand the potential for life on other planets by pushing the known boundaries of survival in extreme environments.

#Astrobiology #Science #Extremophiles

🦖 First-ever fossilized feathers found in dinosaur poop offer insights into ancient bird survival.

💧 Some feathers show dense bristles, potentially repelling water like modern pelicans. Air pockets in feather shafts suggest lightweight yet stiff plumage, a trait unseen in dinosaurs until now.

📉 The find may explain differential survival rates among birds during the mass extinction 66 million years ago, with primitive feather structures potentially hindering body heat retention.

#Dinosaur #Paleontology #Science

🍎 Eating with others may help your body better balance blood sugar levels compared to eating alone.

🌡️ In experiments with 108 participants, blood sugar spiked less and returned to normal faster when they ate with a companion.

🤝 Research suggests human physiology is inherently social, with close relationships offering direct metabolic benefits and a core evolutionary reason for forming bonds.

#SocialPhysiology #Health #Science

⭐ Astronomers discover ZTF J0440+2325, a unique system where a star is slowly consuming a brown dwarf, located 300 light years away.

⭐ This "slow stellar cannibalism" is the first observed instance of a low-mass star actively accreting material from another low-mass object, a process that could last billions of years.

⭐ The "triangular" light curve, initially puzzling, is explained by the steady stream of material from the brown dwarf onto the star, creating a consistent hotspot as they orbit.

#Astronomy #Space #Science

💧 The Dead Sea is warming due to a feedback loop where water loss increases salt concentration, weakening evaporative cooling and leading to further warming and evaporation.

💧 Human diversion of water has contributed significantly to the Dead Sea's warming, with declining water levels accounting for about 1.5°C of deep-water warming between 1979 and 2019, compared to 1.3°C from rising air temperatures.

💧 Projections suggest the Dead Sea could decline by 85 meters and warm by 5–8°C by 2100, depending on greenhouse gas emissions, if inflows stop.

💧 A study on a simulated ancient, isolated basin showed that shrinkage and increasing salt concentration can lead to significant warming (around 20°C over 8,000 years) even without extremely hot regional climates.

#DeadSea #ClimateChange #Science

🛀 A study in the European Journal of Applied Physiology found that 30 minutes of soaking in 40 °C (104 °F) hot water significantly improved blood vessel function in adults aged 45-70, with some effects exceeding moderate-intensity cycling.

🚴‍♀️ This passive heat therapy led to larger increases in blood vessel diameter, blood flow, and microvessel density compared to 30 minutes of cycling at 60-70% of maximum heart rate, alongside greater reductions in blood pressure.

❤️ Researchers suggest hot water immersion, led by Kristanti Wigati from the University of Western Australia, may serve as an "exercise-like" vascular stimulus, particularly beneficial for individuals unable to engage in regular exercise.

#Health #Wellness #Science

📊 **r/science Reddit Community Survey: Early Findings**

* 🧑‍💻 **Community Demographics:** The r/science survey, conducted in May 2026, revealed that the majority of respondents are men (around 75% in the random sample). The average age is nearly 40, with a notable percentage identifying with minority groups (30-47%). A high level of education is prevalent, with about three-quarters holding a Bachelor's or advanced degree.

* 🗓️ **User Behavior & Motivation:** Most respondents are long-time users of r/science, with over 59% first visiting more than 5 years ago. Key motivations for visiting include piqued interest, learning, and seeing what's new. Sanctioned users (those with removals or bans) showed a higher interest in debate and supporting excluded perspectives.

* 🤖 **AI Perception & Use:** Users estimate that around 49% of content on Reddit and 31% on r/science is AI-generated. However, actual reported AI use for content creation remains low (~90% of users across groups did not use AI for content creation). Perceptions of AI content negatively impact community attachment and perceived information quality.

#Reddit #Science #Community

(⚠️ Formatting disabled due to Markdown error)

🌋 Kilauea volcano has entered a new "fountain era" starting December 23, 2024, exhibiting frequent lava fountains, some reaching 457 meters high.

🌋 This phenomenon, detailed in Science on October 8, has produced 54 distinct lava fountains by September 2026.

🌋 Researchers suggest these repeated fountains are caused by trapped gases within magma building up and being released, likening the process to a piston.

🌋 Data analysis points away from a "foam" hypothesis and indicates water dissolved in magma might be a key factor.

#Kilauea #Volcanoes #Science

🚨 New study in Nature Medicine suggests menopause is an abrupt physiological transition, not a gradual aging process.

📊 Analysis of over 300 million lab tests from over 1 million women revealed sudden "jumps" in sex hormones, bone health, liver and kidney function, and blood chemistry at the onset of menopause.

🔬 Researchers used a computational framework to analyze large cohorts in the US and Israel, identifying a "step-like physiological cliff" across most body systems. 52 of 90 lab tests showed significant, sudden changes with menopause in the US dataset.

📈 Hormonal changes, particularly estrogen's role, are central. Declines in AMH and estradiol appear 12-15 years before the final menstrual period, while FSH increases around 14 years prior, suggesting predictability of systemic changes.

#Menopause #WomensHealth #Science

🔬 A newly discovered microbe, Sukunaarchaeum mirabile, found within marine plankton off Japan, possesses one of the smallest genomes ever recorded at just 238 kilobase pairs (kbps) of DNA.

🔬 This tiny archaeon challenges the definition of "life" by having a near-complete absence of recognizable metabolic pathways, leading researchers to propose it may be a parasite.

🔬 Its genome size is even smaller than some viruses, which are not considered living. Sukunaarchaeum mirabile appears to retain the ability to replicate its genome and produce proteins, suggesting it's near the minimum genetic information for an independent cell.

#Science #Microbiology #Discovery

🔬 Scientists are seen as less credible than business leaders and campaigners on broader social issues like health and education.

💻 Scientists' credibility increases when discussing technology but declines when addressing non-technological social issues.

🤔 Distrust stemming from concerns about vested interests, political bias, or relevance significantly reduces scientists' credibility on social issues.

📊 A study of over 6,000 people in the UK and Sweden revealed these perceptions.

#Science #PublicTrust #ResearchImpact

* 👁️ Researchers found that speaking aloud causes pupils to widen more than thinking silently.

* 🧠 Pupil size changes during silent thinking varied depending on the task's difficulty, but were always less pronounced than when speaking aloud.

* 👶 This non-invasive method of measuring arousal could help study how silent thinking develops in young children.

#TechResearch #Science #Neuroscience

(⚠️ Formatting disabled due to Markdown error)

🔬 Scientists have successfully transformed old red blood cell precursors into young brain stem cells.

💡 This direct conversion method, developed by researchers at the University Hospital of Bonn and the University of Bonn, bypassed the need to revert cells to a blank slate.

⏳ Over 50-100 days, the converted cells continued to de-age, effectively becoming 60 years younger and exhibiting the behavior of young cells.

#Science #Aging #Regeneration