Adolescents with higher testosterone levels were better at adjusting their trust levels. This effect was most apparent among boys. For them, testosterone increased theory of mind, which in turn predicted more strategic trust—investing more in friends and less in strangers.
https://www.psypost.org/cortisol-and-testosterone-may-influence-how-teens-navigate-trust-in-social-situations/
https://redd.it/1macblg
@rnerds
Photothermal aerogel could make saltwater drinkable | Size-Insensitive Vapor Diffusion Enabled by Additive Freeze-Printed Aerogels for Scalable Desalination
https://arstechnica.com/science/2025/07/this-aerogel-and-some-sun-could-make-saltwater-drinkable/
https://redd.it/1ma4vbs
@rnerds
The origin of some neuropsychiatric diseases, such as autism, bipolar disorder, or depression, and certain neurodegenerative diseases, Alzheimer's and Parkinson's, can be found in very early stages of brain formation in the fetus
https://www.hospitaldelmar.cat/en/noticies/view.php?ID=135
https://redd.it/1ma1zx4
@rnerds
The first 100% effective HIV prevention drug is approved and going global
https://newatlas.com/infectious-diseases/hiv-prevention-fda-lenacapavir/
https://redd.it/1m9yv58
@rnerds
A Novel Exopolysaccharide, Highly Prevalent in Marine Spongiibacter, Triggers Pyroptosis to Exhibit Potent Anticancer Effects
https://faseb.onlinelibrary.wiley.com/doi/10.1096/fj.202500412R
https://redd.it/1m9ti04
@rnerds
Longer birth control pill use linked to lower odds of depressive symptoms | The research found a consistent link between extended oral contraceptive use and lower rates of depressive symptoms, particularly among women without diabetes.
https://www.psypost.org/longer-birth-control-pill-use-linked-to-lower-odds-of-depressive-symptoms/
https://redd.it/1m9rlgv
@rnerds
A new study provides evidence that the human brain emits extremely faint light signals that not only pass through the skull but also appear to change in response to mental states. Researchers found that these ultraweak light emissions could be recorded in complete darkness.
https://www.psypost.org/fascinating-new-neuroscience-study-shows-the-brain-emits-light-through-the-skull/
https://redd.it/1m9pm2m
@rnerds
A new review finds most research on kids and phones ignores when they get one. Only 0.8% of studies explore why some children get smartphones early, despite links to later problematic use.
https://www.nature.com/articles/s41599-025-05557-6
https://redd.it/1m9ko2m
@rnerds
Forests in the Brazilian Amazon damaged by fire remain about 2.6 °C (4.7 °F) hotter than neighboring intact or selectively logged stands, and the extra heat can linger for at least 30 years
https://news.climate.columbia.edu/2025/07/25/burned-amazon-forests-stay-hot-and-stressed-for-decades-finds-new-nasa-supported-study/
https://redd.it/1m97fmz
@rnerds
Puberty blockers, gender-affirming hormones prescribed to less than 0.1% of US trans and gender diverse (TGD) minors with private insurance. Lower rates would be expected among the uninsured, Medicaid recipients, and those with less comprehensive private insurance.
https://hsph.harvard.edu/news/gender-affirming-medications-rarely-prescribed-to-u-s-adolescents/
https://redd.it/1m9ax7w
@rnerds
Voters judge women candidates more harshly for deviating from party norms and exhibit greater initial uncertainty, leading to increased scrutiny compared to male candidates, according to new research
https://www.cambridge.org/core/journals/politics-and-gender/article/gendered-risks-of-violating-expectations-and-the-importance-of-information-for-women-candidates/4370323841113202F74FD756D1C40321
https://redd.it/1m97t3a
@rnerds
Glucagon-like peptide-1 (GLP-1) receptor agonists, such as Ozempic™ (semaglutide), can reduce asthma symptoms in obese people, according to a new study comparing medical records from over 60,000 patients with obesity.
https://www.technologynetworks.com/drug-discovery/news/glp-1-weight-loss-drugs-reduce-asthma-symptoms-402720
https://redd.it/1m8wu1d
@rnerds
People with persistent high grief symptoms had an 88% higher risk of dying within 10 years. These individuals were more likely to receive mental health treatment and medications, including antidepressants and sedatives.
https://neurosciencenews.com/intense-grief-mortality-29521/
https://redd.it/1m90a5c
@rnerds
An estimated 12% of first graders’ most-used media at home is educational, a new study suggests, also finding that higher use of educational apps and videos was associated with more time spent reading and less overall time in front of a screen.
https://news.osu.edu/first-graders-who-use-more-educational-media-spend-more-time-reading/?utm_campaign=omc_science-medicine_fy26&utm_source=reddit&utm_medium=social
https://redd.it/1m8xuzd
@rnerds
A new study suggests that when Americans learn about members of Congress profiting from stock trading, their trust in Congress falls—and so does their willingness to comply with the laws that Congress passes.
https://www.psypost.org/study-shows-congressional-stock-gains-come-at-democracys-expense/
https://redd.it/1m8v5y5
@rnerds
A new eco-friendly plastic called LAHB has shown it can biodegrade even in the extreme environment of the deep ocean, unlike conventional plastics that persist for decades
https://www.sciencedirect.com/science/article/pii/S0141391025003568?via%3Dihub
https://redd.it/1ma99m9
@rnerds
A new study maps global hotspots for disease outbreaks, showing how climate change, deforestation, and crowded cities are creating the conditions for the next epidemic.
https://www.science.org/doi/10.1126/sciadv.adw6363
https://redd.it/1ma1b1k
@rnerds
A new study reveals that nearly half of coastal marine protected areas worldwide still face industrial fishing, most of it untracked. Even in fully protected zones, stealth vessels persist.
https://www.science.org/doi/10.1126/science.ado9468
https://redd.it/1ma1end
@rnerds
Study suggests that people with high social anxiety are more accurate at recognizing subtle angry expressions compared to people with low social anxiety | These responses occurred during later stages of processing, which may reflect increased cognitive effort to interpret socially ambiguous cues.
https://www.psypost.org/socially-anxious-people-are-better-at-detecting-subtle-signs-of-anger/
https://redd.it/1m9x06r
@rnerds
New study found that loneliness was not associated with social media addiction (when controlling for other factors), but boredom in life was. Bored individuals were more likely to exhibit signs of social media addiction.
https://www.psypost.org/bored-individuals-are-more-likely-to-develop-social-media-addiction/
https://redd.it/1m9u3as
@rnerds
Neanderthals were not ‘hypercarnivores’ and feasted on maggots
https://www.theguardian.com/science/2025/jul/25/neanderthals-feasted-maggots-science-nutrition
https://redd.it/1m9oneo
@rnerds
New study found that COVID-19 vaccinations averted 2.5 million deaths during 2020-2024 and saved 15 million life-years. COVID-19 vaccinations had a substantial benefit on global mortality during 2020-2024, but this benefit was mostly limited to a minority of the population of older individuals.
https://jamanetwork.com/journals/jama-health-forum/fullarticle/2836434
https://redd.it/1m9p6d3
@rnerds
Immigration status can become a death sentence during public health crisis. A study looking back on COVID-19 deaths in California found that immigrants who were potentially undocumented experienced much higher relative excess mortality during the pandemic.
https://news.ucsc.edu/2025/07/new-research-shows-how-immigration-status-can-become-a-death-sentence-during-public-health-crisis/
https://redd.it/1m9eeyx
@rnerds
Freshwater is vanishing at an alarming pace, a new global study reveals. Since 2002, Earth’s continents have experienced unprecedented losses of freshwater, driven by climate change, unsustainable groundwater extraction and extreme droughts — which are now contributing to sea level rise.
https://www.science.org/doi/10.1126/sciadv.adx0298
https://redd.it/1m9b0j0
@rnerds
TB bacteria ‘play dead’ to outlast vaccinated or previously infected hosts. Genetic mouse study shows TB switches into a quiescent survival mode, relying on stress-response genes rather than growth factors, undermining traditional vaccine protection and guiding new vaccine plus therapy strategies
https://now.tufts.edu/2025/07/14/tb-bacteria-play-possum-evade-vaccines
https://redd.it/1m984ng
@rnerds
Floss-based vaccination targets the gingival sulcus for mucosal and systemic immunization
https://www.nature.com/articles/s41551-025-01451-3
https://redd.it/1m90rjp
@rnerds
Scientists discover new state of quantum matter that isn’t affected by any form of radiation, which makes it an ideal candidate for deep-space travel
https://news.uci.edu/2025/07/24/uc-irvine-scientists-discover-new-state-of-quantum-matter/
https://redd.it/1m90f11
@rnerds
Long-term exposure to outdoor air pollution linked to increased risk of dementia | An analysis of studies from almost 30 million people has highlighted the role that air pollution – including that coming from car exhaust emissions.
https://www.cam.ac.uk/research/news/long-term-exposure-to-outdoor-air-pollution-linked-to-increased-risk-of-dementia
https://redd.it/1m8vowh
@rnerds
Scientists discover gut cells that communicate like brain neurons: Support cells known as telocytes use fine extensions—like neurons in the brain—to deliver signals directly to intestinal stem cells, making this one of the clearest cellular analogues between brain and gut function seen to date.
https://newatlas.com/science/intestinal-stem-cells-telocytes-communication/
https://redd.it/1m8w3xk
@rnerds
Hospital Food is oftentimes unhealthy and bad for the environment
https://doi.org/10.1016/j.lanplh.2025.05.004
https://redd.it/1m8dvkj
@rnerds
