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digest/Science/Tuesday, 26 May 2026

Tuesday, 26 May 2026

A World in Flux: Mental Well-being, Scientific Breakthroughs, and Societal Shifts

Skipping Meals and Depression: A Link Between Eating Habits and Mood

Research indicates a correlation between irregular eating patterns, such as skipping main meals, and an increased likelihood of experiencing depressive symptoms. Individuals who frequently forgo meals are more prone to reporting feelings of depression. However, the study suggests that a diverse diet may help mitigate this association. This finding highlights the complex interplay between nutrition and mental health, suggesting that a varied intake of foods could offer a buffer against the negative impact of inconsistent eating.

Intelligence and Work Ethic as Key College Grade Predictors

Contrary to some assumptions, general intelligence and a strong work ethic are the most reliable predictors of academic success in college. A study found that these two factors consistently outperformed mathematical knowledge in predicting college grades. This suggests that foundational cognitive abilities and dedication to learning are more influential than specific academic skills.

Belugas Demonstrate Self-Awareness Through Mirror Recognition

Beluga whales have demonstrated self-awareness by recognizing themselves in mirror reflections. This ability to distinguish oneself from others is a relatively rare trait among non-human species, placing belugas on a limited list of animals exhibiting signs of self-recognition. This finding provides further insight into the cognitive complexity of these marine mammals.

Pretend Play in Toddlers and Long-Term Mental Health

Toddlers who exhibit stronger abilities in pretend play tend to experience fewer emotional and behavioral difficulties as they transition to primary school. Research suggests a link between imaginative play in early childhood and better long-term mental health outcomes. Encouraging pretend play during these formative years may offer support for healthy psychological development.

Graphene Quantum Dots Target Parkinson's Disease-Linked Protein Clumping

Scientists have successfully demonstrated the potential of specially engineered graphene quantum dots to effectively target and inhibit the clumping of specific brain proteins that are fundamentally linked to the development and progression of Parkinson's disease. This breakthrough offers a promising avenue for therapeutic intervention in this neurodegenerative condition.

Unraveling the 200-Year-Old Mystery of Nicotine Production in Tobacco Plants

Researchers have solved a long-standing, 200-year-old scientific puzzle concerning how tobacco plants synthesize nicotine. This discovery advances our understanding of plant biochemistry and could have implications for various fields, including agriculture and pharmacology.

Handwriting Speed as a Potential Indicator of Cognitive Decline in Older Adults

Handwriting speed may serve as a subtle indicator of cognitive decline in older individuals. Research suggests that changes in the rate at which people write could reflect underlying neurological changes associated with aging.

Cooperative Wasps Exhibit Social Compensation in the Face of Loss

Observations of tropical cooperative wasps revealed a fascinating social behavior. When a queen dies, certain non-competitive worker wasps avoid the typical violent power struggles that ensue. Instead, these workers focus on foraging and brood care, effectively acting as "compensators" to prevent the colony's demise.

The Ideology Embedded in the Term "Prompt" for Generative AI

An essay argues that the term "prompt," commonly used when interacting with generative artificial intelligence, inadvertently introduces a computational assumption. This assumption frames questions as neutral instructions, while the essay contends that every question carries an inherent ideology. The author proposes using the term "statement-command" as a more accurate alternative.

Scientists Solve the "Missing Data" Mystery of Sea Level Rise

Researchers have addressed a significant challenge in understanding sea level rise by resolving a long-standing "missing data" problem. This advancement improves the accuracy and reliability of climate models and enhances our ability to predict future sea level changes.

A Vocabulary of Suspicion and Power in Conspiratorial Mindsets

The words people choose can subtly reveal a conspiratorial mindset. Individuals prone to conspiratorial thinking may not consciously construct elaborate plots, but they consistently employ a recognizable vocabulary characterized by suspicion and the assertion of power.

Cows Can Visually Discriminate and Recognize Human Faces

Studies have shown that cows possess the ability to visually discriminate between familiar and unfamiliar human faces in videos. This suggests a more complex cognitive capacity in these animals than previously understood.

Liberals Prioritize Distant Others While Conservatives Favor Close Ingroups

A study involving three US samples (N=5,100) indicates that liberals maintain a prioritization of in-group members as a moral priority, while also extending concern to distant entities. Conservatives similarly prioritize in-groups, but their concern extends less readily to out-groups.

Oral Glutamatergic Modulation for Refractory Bipolar Disorder with OCD

A case study involving three patients demonstrates the potential of oral glutamatergic modulation using dextromethorphan and piracetam in treating refractory bipolar disorder with obsessive-compulsive disorder. This approach offers a novel therapeutic avenue for individuals with treatment-resistant conditions.

Biomedical Research Students Benefit from Collaborative Art-Making

A case study of an artist-in-residence program at the University of Pennsylvania found that biomedical research students enjoyed a collaborative art-making process and experienced improvements in communication skills. This highlights the potential benefits of interdisciplinary engagement.

Psilocybin Reduces Nerve Pain and Enhances Painkiller Effectiveness in Mice

A study on mice indicates that a single dose of psilocybin, the active compound in magic mushrooms, can reduce nerve pain for up to a month and increase the effectiveness of commonly used pain medications. Psilocybin appears to alter the neural pathways involved in pain processing.

Rising Income Inequality Drives Anti-Immigrant Politics and Republican Realignment

The increasing gap between the rich and the poor is contributing to the rise of anti-immigrant sentiment and a realignment of political support towards the Republican party. The link between anti-immigrant attitudes and Republican voting is stronger in contexts with higher income inequality.

Food and Beverage Plastics Dominate Global Marine Litter

A comprehensive analysis of marine litter worldwide reveals that food and beverage plastics are the most prevalent type of debris found along shorelines. Plastic food packaging, caps and lids, and plastic bottles are among the most abundant categories.

ADHD Symptoms Reflect in Brain Development During Adolescence

Symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD) are reflected in the way the brain develops during adolescence. Individuals with more severe ADHD symptoms exhibit a slower rate of cortical thinning in brain regions responsible for mind-wandering and internal thoughts, potentially impacting their ability to focus externally in classroom or social settings.

Saturn-Sized Planet's Atmosphere Contains Methane

Atmospheric analysis of a Saturn-sized planet reveals the presence of methane. These findings provide new details about the planet's atmospheric composition, which can inform models of planetary formation and evolution and enhance our understanding of Earth's own atmospheric processes.

Climate Change Threatens Global Plant Species Through Habitat Shrinkage

The escalating effects of climate change are leading to a decline in global plant species due to habitat loss and fragmentation. As environments change, many plant populations are struggling to adapt, increasing the risk of extinction.

Serotonin Reduces "Belief Stickiness" and May Aid in OCD Treatment

Research suggests that serotonin plays a role in reducing "belief stickiness," the tendency to remain fixated on an idea even when presented with contradictory evidence. This discovery has implications for understanding and potentially treating obsessive-compulsive disorder (OCD).

Sleep, Waste Clearance, and Dementia: A Potential Link

A growing body of research suggests a connection between sleep disruption, waste clearance in the brain, and an increased risk of dementia. Chronic stress, depression, cardiovascular disease, fragmented sleep, and aging are all associated with a disruption of the sleep-dependent brain rhythm that helps remove waste products.

Younger Generations Experience Poorer Health Earlier in Life

A study of over 100,000 people in the UK born since 1946 indicates that younger generations are experiencing poorer health earlier in life compared to previous generations. More recently born individuals may spend a greater proportion of their lives in poor health than those born in earlier decades.

New Mathematical Model Predicts Global Population Crash by 2064

A newly developed mathematical model projects a potential global population crash by the year 2064. This prediction is based on various factors and has significant implications for future societal and environmental conditions.

Discovery of a New Pan-Saur Lizard Species in France

Paleontologists have identified a new species of pan-saur lizard (Anguimorpha) from the lower Campanian period in France. This discovery provides further insights into the diversity of life during the Mesozoic Era.

TikTok's Recommendation System Skews Towards Anti-Democratic Content During Elections

Analysis of TikTok's content recommendations during the 2024 election indicates a disproportionate exposure to anti-democratic videos. The platform's recommendation system tends to expose users to more conservative and anti-Democratic political content, regardless of individual user preferences.

Racial and Phenotypic Diversity in Fashion Modeling Remains Limited

A 25-year analysis of fashion records reveals that while racial and phenotypic diversity in modeling has increased, the median model physique has not changed significantly. Diversity in body size is often limited to rare plus-size outliers, and non-White models are disproportionately cast as plus-size.

Americans' Support for Free Speech Shifts After Trump's Calls for Restrictions

Despite widespread support for free speech among Americans across political divides, survey experiments show that support for government censorship of opposing media and individuals increases among voters following direct calls for speech restrictions from President Trump.

AI Models Struggle with Regional Words from Brazil's Center-West and Northeast

Artificial intelligence models trained primarily on data from the Global North often treat words from Brazil's Center-West and Northeast regions as statistical noise. Addressing this requires more than just expanded datasets; it necessitates a shift in how data is understood as a cultural meaning-making system.

Record-Breaking Ice Loss in Central Asia in 2025

Central Asia experienced record-breaking ice loss in 2025, continuing a broader global pattern of recent years marked by unprecedented glacier melt. This loss has been observed in regions including the European Alps, the Pyrenees, western North America, and Svalbard.

Fish Climbs 50-Foot Waterfall in First Video

A video captures a remarkable instance of a fish successfully climbing a 50-foot waterfall. This unusual behavior highlights the adaptability and surprising capabilities of aquatic life.

Stress Impairs the Brain's Ability to Link Memories

Chronic stress can negatively impact the brain's ability to form connections between memories, leading to a dampening of insight and potentially affecting cognitive processes.

Democrats Report Stronger Bodily Sensations to Negative Political Emotions

Research indicates that Democrats report stronger physical sensations associated with negative political emotions compared to Republicans. Higher levels of physical activation were observed for negative emotions such as anger, anxiety, depression, and disgust.

Fear of Missing Out Linked to Hypersensitive Brain Reactions to Digital Likes

A study suggests a correlation between the fear of missing out (FOMO) and heightened brain responses to digital "likes" and social media engagement. This finding provides insight into the psychological mechanisms underlying FOMO.

Mental Disorders Have Doubled Globally Since 1990, Now the Leading Cause of Disability

Globally, the prevalence of mental disorders has more than doubled since 1990. These disorders are now the leading cause of disability worldwide, particularly affecting young adults aged 15-19, with higher rates among women.

V-Dem Data Shows a Declining State of Democracy Worldwide in 2025

Data from the Varieties of Democracy (V-Dem) project indicates a worsening state of democracy globally in 2025. Autocracies now outnumber democracies, and more countries are transitioning towards autocratic rule than towards democracy, with the US experiencing a particularly rapid decline in democratic norms under the Trump administration.

Longitudinal Comparison of Election Outcomes and System Legitimacy in the UK and US

A longitudinal study of election outcomes in the United Kingdom and the United States reveals the impact of election results on the perceived legitimacy of democratic systems.

DXM, CYP2D6-Inhibiting Antidepressants, Piracetam, and Glutamine as a Potential Ketamine-Class Antidepressant Regimen

Research explores the potential of combining existing drugs like dextromethorphan, cyp2d6 inhibitors, piracetam, and glutamine as a novel antidepressant regimen, drawing parallels to the effects of ketamine.

Wildlife Behavior Adapts to Human Presence, Reshaping Ecosystems

The presence of humans, rather than just habitat changes, is influencing the behavior of wildlife, leading to shifts in how species utilize space and environments. This has significant implications for conservation efforts.

No Evidence of Widespread Brain Inflammation in Prolonged COVID-19 Symptoms, But Increased Activity in Emotion-Related Regions

A new brain imaging study found no widespread brain inflammation in individuals experiencing prolonged symptoms after COVID-19. Instead, severe symptoms were associated with increased brain activity in regions involved in mood and emotion.

Calcium, Vitamin D, or Combined Supplements Offer Little Benefit for Fracture and Fall Prevention in Older Adults

An in-depth review of 69 randomized controlled trials involving over 153,000 adults found that calcium, vitamin D, or combined supplements offer little to no clinically meaningful benefit in preventing fractures and falls in most older people.

Buying Private Health Insurance Can Worsen Overall Population Health

An increase in the uptake of private health insurance can lead to poorer overall health in the population over time. While private health services may benefit those who can afford them, this can come at the expense of public health.

Rare Case of Brain Tumor Linked to AAV Gene Therapy Integration in Child with Hurler Syndrome

A rare case report details a brain tumor in a child treated for Hurler syndrome, which is linked to the integration of adeno-associated virus (AAV) gene therapy into the child's genome.

Cyanobacteria Incorporated Plasmid DNA, Leading to the Evolution of Cell Shape Control

In a significant step towards multicellular life, cyanobacteria have incorporated plasmid DNA into their chromosomal genes, repurposing genes that once controlled cell division to regulate cell shape.