Thursday, June 05, 2025

 

Being incarcerated and living in areas where more have gone to jail is associated with higher death rates




The Mount Sinai Hospital / Mount Sinai School of Medicine






Journal: JAMA Network Open

Title: Elevated death rates associated with incarceration emphasize the need for health care interventions both during and after incarceration

Author: Utsha Khatri, MD, Assistant Professor of Emergency Medicine, Population Health Science and Policy, and Global Health and Health System Design, at the Icahn School of Medicine at Mount Sinai

Bottom line: This study shows individual incarceration rates and rates at the county level (the number of incarcerated individuals per 100,000 residents) are strongly associated with increased mortality in the United States. Additionally, people who weren’t incarcerated but live in counties where a higher number of their fellow residents are in jail or prison were also linked to increased all-cause mortality.

Why the study is important: Elevated death rates associated with incarceration emphasize the need for health care interventions both during and after incarceration, especially as the United States faces the ongoing overdose crisis.

Why the study is unique: This is the first national study to jointly examine both individual and area-level incarceration in relation to all-cause and overdose mortality. It is also one of the largest studies that is representative of the U.S. population, analyzing more than 3 million people with 11 years of follow-up data.

How the research was conducted: Researchers did a retrospective analysis on data from the American Community Survey, a government survey that collects detailed information about people’s lives, such as age, race, income, and living situation. They analyzed more than 3.2 million adults in the United States for more than a decade (2008-2019). Researchers linked those survey responses to official death records from the National Death Index to track who died and what they died from. They also analyzed county-level jail incarceration rates using data from the Vera Institute of Justice to study how personal incarceration affects health—and how living in communities whose residents experience high incarceration rates influences mortality even among people who weren’t incarcerated. The team classified people as “incarcerated” if they were living in jail or prison at the time of the survey; everyone else was considered “not incarcerated,” and adjusted for many factors that influence health and mortality, including age, gender, income, education, race/ethnicity, and the poverty level of each county. They then determined how individual incarceration status and high incarceration rates in each county were associated with death from any cause and death from drug overdose. 

Study results: Incarcerated individuals were 39 percent more likely to die from any cause than those who were not incarcerated. They were also three times more likely to die from a drug overdose. People living in counties with higher incarceration rates faced higher overall death rates, even if they themselves weren’t incarcerated. For every 10 percent increase in a county’s jail population, there were approximately 5 additional deaths per 100,000 people.

Incarcerated individuals were more likely to be younger, male, Black, or Hispanic, and to have lower levels of education and income. They also tended to live in communities with higher poverty rates and higher percentages of Black residents, which are linked to worse health outcomes.

Many counties in the Southeast had some of the highest jail incarceration rates in the country and also experienced elevated rates of all-cause mortality. Individual counties were not identified in the paper, but the regional pattern highlights the overlap between high incarceration and poor health outcomes in this area.

Main takeaways:  People who experience incarceration face substantially elevated risks of premature death, especially from drug overdose. This underscores the urgent need for patients to be provided quality and evidence-based health care access before, during, and after incarceration, including medications for opioid use disorder. Clinicians should be aware that incarceration history is a major risk factor for mortality, particularly from overdose, and should screen for incarceration history as a social determinant of health.

Quotes: 
“Incarceration increases mortality at both the individual and community levels, highlighting its significance as a critical public health issue,” says Dr. Khatri. “Strengthening health care services in communities with high incarceration rates—such as expanding access to community-based primary care, a strategy shown to reduce population-level mortality—may help address the structural factors contributing to poor health in these areas and mitigate the associated elevated risks.”

Funding:
-K23DA058860-01A1 from the National Institute on Drug Abuse (PI: Dr. Utsha Khatri)

-R25DA037190 from the Lifespan/Brown Criminal Justice Research Training Program on Substance Use and HIV

 *Funders had no role in study design, data collection/analysis, or manuscript preparation.

 

About the Mount Sinai Health System

Mount Sinai Health System is one of the largest academic medical systems in the New York metro area, with 48,000 employees working across seven hospitals, more than 400 outpatient practices, more than 600 research and clinical labs, a school of nursing, and a leading school of medicine and graduate education. Mount Sinai advances health for all people, everywhere, by taking on the most complex health care challenges of our time—discovering and applying new scientific learning and knowledge; developing safer, more effective treatments; educating the next generation of medical leaders and innovators; and supporting local communities by delivering high-quality care to all who need it.

Through the integration of its hospitals, labs, and schools, Mount Sinai offers comprehensive health care solutions from birth through geriatrics, leveraging innovative approaches such as artificial intelligence and informatics while keeping patients’ medical and emotional needs at the center of all treatment. The Health System includes approximately 9,000 primary and specialty care physicians and 11 free-standing joint-venture centers throughout the five boroughs of New York City, Westchester, Long Island, and Florida. Hospitals within the System are consistently ranked by Newsweek’s® “The World’s Best Smart Hospitals, Best in State Hospitals, World Best Hospitals and Best Specialty Hospitals” and by U.S. News & World Report's® “Best Hospitals” and “Best Children’s Hospitals.” The Mount Sinai Hospital is on the U.S. News & World Report® “Best Hospitals” Honor Roll for 2024-2025.

For more information, visit https://www.mountsinai.org or find Mount Sinai on FacebookInstagramLinkedInX, and YouTube.

 

 

Study reveals the beneficial nature of greenspace exposure for brain development in early adolescence



Findings in Biological Psychiatry reinforce the positive link between nature and mental health



Elsevier

Associations between greenspace exposure and brain structure and change in brain structure 

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A and B, t-statistic values from linear mixed-effects models for associations between greenspace exposure and T2 cortical thickness (A), T2 surface area (B), change in cortical thickness change (C) and change in surface area (D).

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Credit: Biological Psychiatry / Li et al.




Philadelphia, June 3, 2025  Researchers have found that greenspace exposure is associated with widespread patterns of structural brain development during early adolescence, which in turn are associated with better academic and mental outcomes. The findings of the study in Biological Psychiatry, published by Elsevier, emphasize the need to integrate natural environments into urban and educational settings and provide key insights for policymakers, parents, and educators to support adolescent well-being.

Previous research has shown that exposure to green spaces positively influences mental health and cognition. However, there is limited understanding of the underlying neurobiological mechanisms of brain development and its potential role in supporting mental well-being in children.

This is the first study to examine the influence of greenspace exposure on structural neurodevelopmental trajectories and which tests whether these trajectories mediate the relationship between greenspace exposure and positive academic or mental health outcomes.

John Krystal, MD, Editor of Biological Psychiatry, comments, "We tend to focus on the detrimental effects and negative aspects of our environment. It is equally important to highlight exposure to green spaces and other positive environments and their contributions to human thriving and resilience."

Investigators analyzed data from more than 7,000 ethnically diverse adolescents in the Adolescent Brain Cognitive Development (ABCD) study from 21 sites across the United States to test the relationship between greenspace exposure at age 9-10 and brain structure two years later as well as change over time. Additionally, they tested whether brain structural development statistically mediated the associations of greenspace exposure with mental health and academic performance.

Co-lead investigator Qingyang Li, MSc, Neuroimaging Department, Institute of Psychology, Psychiatry & Neuroscience, King’s College London, explains, "We found greenspace exposure to be associated with brain structural changes at both whole-brain and regional-brain levels. We also found an indirect effect of greenspace exposure on better academic and mental outcomes through both total and regional cortical structure independent of household and neighborhood disadvantage."

They found that greenspace exposure was associated with greater total surface area (SA) and cortical volume (CV), greater cortical thickness (CT) in temporal regions and the insula, lower thickness in the caudal middle frontal and superior frontal gyri, greater SA across several regions, and greater volume of the caudate nucleus, putamen, and nucleus accumbens. In analyses studying change in brain structure over time, higher greenspace exposure was associated with greater growth of total SA, lower average thickness reduction, and reduced total CV growth as well as changes at the regional level.

Adolescence is typified by rapid structural brain development and heightened susceptibility to environmental influences. By 2050, approximately 68% of the global population is expected to reside in cities. Rapid urbanization reduces opportunities for individuals to interact with natural environments and green space.

Co-lead investigator Divyangana Rakesh, PhD, Neuroimaging Department, Institute of Psychology, Psychiatry & Neuroscience, King’s College London, concludes, "Children’s and adolescents’ mental health issues have become a global concern. At the same time, urbanization is rapidly changing the environment and often reducing access to green spaces. This study offers insights for policymakers on how urban planning can help address the growing mental health challenges faced by children and highlights the importance of integrating green spaces into school settings and urban environments."

TATE BRO'S FAN BOYS

Major new study reveals key insights into incel community



A major study reveals incels are a diverse group marked by poor mental health, loneliness, and neurodiversity, challenging common stereotypes.



Swansea University






A groundbreaking new study offers unprecedented insights into the incel (involuntary celibate) community, uncovering critical facts that challenge prevailing stereotypes and expand our understanding of this controversial subculture.

Led by researchers from Swansea University and the University of Texas at Austin, this study is the most comprehensive to date, surveying 561 participants across the UK and US, in collaboration with the UK's Commission for Countering Extremism (CCE).

Incels are a subgroup of men who struggle with forming sexual or romantic relationships, often creating a sense of identity around this perceived inability. In recent years, there has been a small, but growing, number of violent attacks that have been attributed to individuals who identify as incels. 

The study, published in the Archives of Sexual Behavior, reveals a more nuanced portrait of incels, showing that they come from diverse backgrounds, with varied political beliefs and a high prevalence of mental health issues. While many associate incels with far-right ideologies and violent behaviour, this research suggests a broader and more complex set of factors contributing to harmful attitudes and beliefs.

Dr Andrew G. Thomas, Senior Lecturer of Psychology at Swansea University said: “Incels are often stereotyped in the media as young, white, right-wing men who are not in employment, education, or training. When we tested the accuracy of these stereotypes using primary data collection, we discovered misconceptions. The involuntary celibate community contained men with a broad range of characteristics. If we had to point to their most consistent characteristics, it would be incredibly poor mental health and their feelings of bitterness, frustration, and distain towards women – though even these show variation within the sample.”

Key findings:

  • Mental health: A substantial portion of the participants reported experiencing suicidal thoughts, with 37% of incels indicating they had daily suicidal thoughts.

 

  • Neurodiversity: This study is the first to use the Autism Spectrum Quotient-10 (AQ-10), a validated screening tool that assesses whether someone should be referred for a formal autism assessment. It showed 30% of participants met the clinical cutoff for referral, indicating a high prevalence of autistic traits, which significantly surpasses the general population's base rate of 1%.

 

  • Loneliness: 48% of participants selected the highest response for all three items on the loneliness scale, indicating very high levels of loneliness.

 

  • Bullying: 86% of incels reported having experienced some form of bullying, compared to 33% of the general population.

 

  • Ethnic diversity: The study included a diverse ethnic representation, with 58% white and 42% identifying as people of colour.

 

  • Political orientation: On average, incels positioned themselves slightly left of centre politically. This challenges the common assumption that incels are predominantly aligned with far-right ideologies.

 

  • Socioeconomic backgrounds: Participants came from diverse socioeconomic backgrounds, with 40.6% identifying as middle class and 27.1% as lower-middle, challenging the notion that incels are predominantly from lower socioeconomic backgrounds.

 

  • Employment and education: 42.4% were in full-time employment, and 16.4% were in full-time education.

 

  • Age: The average age of study participants was 26. 18% of incels were 30 or older and the oldest in the sample was 73.

 

The study also reveals two key factors that contribute to the development of harmful attitudes and beliefs among incels. One is linked to high levels of autistic traits, a history of bullying and abuse, and poor self-esteem; the other associated with anti-social personality traits such as psychopathy, narcissism, and Machiavellianism, alongside extreme right-wing views.

Dr Thomas added: “Our findings highlight that there might be subgroups among incels that end up in the community for different reasons. This is important information to know, as these pathways might lend themselves to different interventions. The existence of subgroups might also explain why different bodies, for example the NHS and Prevent, sometimes find it difficult to establish who might be best placed to intervene.”

Study co-author Dr Joe Whittaker, Senior Lecturer of Criminology at Swansea University, said: “Recently, incels have moved to the centre of public discussions – in part helped the Netflix show Adolescence, which has been a global phenomenon. While drama can be a useful tool for facilitating public debate, it is also important to have rigorous academic research to back it up. Our study is one of the first that takes a deep dive into a large sample of incels. This means that we were able to make important comparisons between subgroups. Our findings will help to inform policy and practice within the sphere of counter-extremism and help stakeholders to develop effective and appropriate responses.”

Fellow co-author William Costello, a researcher in psychology at the University of Texas at Austin, added: “Incels are typically framed in terms of the threat they pose to others, but our findings suggest they may be just as dangerous, if not more so, to themselves. The extraordinarily high rates of suicidal ideation in our sample were among the most alarming findings and demand urgent attention. Likewise, the prevalence of autism traits was much higher than in the general population, pointing to the need for greater clinical attention to neurodiversity within this group.

"This work was conducted with support from the UK Government’s Commission for Countering Extremism, and we’ve already had the opportunity to present our findings as oral evidence to the Women and Equalities Committee in Parliament. It’s encouraging to see the research beginning to shape policy conversations, and we hope it will continue to do so."

 

How does life rebound from mass extinctions? Scientists find surprising answers



Study by UChicago, Smithsonian, UK Natural History Museum challenges assumptions about survival after global catastrophe




University of Chicago

Scabrotrigonia, a victim of the end-Cretaceous extinction. 

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This lineage was widespread and abundant in the Late Cretaceous, but just a few species survive today off the coasts of Australia.

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Credit: Image courtesy Smithsonian National Museum of Natural History




If you’re an animal living through a mass extinction, it’s best to be one that’s found a unique way to make a living. 

A new analysis of the species that lived or died out in the wake of the asteroid that killed the dinosaurs has revealed unexpected patterns that counter our prevailing theories of survival in the wake of mass extinctions. 

A team of scientists with the University of Chicago, the Smithsonian Institution and the National History Museum of London carefully catalogued fossilized clams and mussels, assembling a picture of the ocean ecosystems just before and after the mass extinction 66 million years ago. They found that though three quarters of all species were lost, each ecological niche remained occupied—a statistically unlikely outcome.

“It’s a really interesting, and slightly disquieting finding,” said David Jablonski, the William R. Kenan, Jr., Distinguished Service Professor of Geophysical Sciences at UChicago and one of the authors on a new study published in Science Advances. “How ecosystems recover from mass extinctions is a huge question for the field at the moment, given that we’re pushing towards one right now.”

‘Extremely statistically unlikely’

In the history of Earth, we have documented five major extinctions—cataclysmic events in which the majority of species die out due to some worldwide change—and are currently edging towards the sixth mass extinction. Scientists are, therefore, very interested in understanding how biodiversity and ecosystems recover from these massive events. 

Jablonski, along with paleobiologists Stewart Edie at the Smithsonian and Katie Collins at the Natural History Museum in London, decided to examine the most recent past extinction. Known as the end-Cretaceous, the event resulted in more than three-quarters of all known species dying out, including T-rexes and most of the dinosaurs. 

The team focused on clams, oysters, cockles and other ocean-dwelling mollusks. Their hard shells are abundant and fossilize easily, which was important because the team wanted to document as complete a picture as possible of the ecosystem—both before and after the extinction. 

“What we wanted to do was not just count species, but count ways of life,” Edie explained. “How do they make their living? For example, some cement themselves to rocks; others tunnel into sand or mud; some are even carnivorous.” 

The team painstakingly built a picture of the global ecological landscape just before the extinction, “before the roof came in,” Jablonski said, and compared it to the species found afterwards. And they got a surprise. 

Though huge numbers of species died out, virtually none of the ecological niches were lost. 

“That’s extremely statistically unlikely,” said Collins, co-author on the study. “If 75% of all of the species died out, you would expect at least some of the ways of life to be lost completely—some of those niches only had one or two species in them. But that’s not what we see.” 

The finding doesn’t fit with either of the prevailing models for how biodiversity recovers from extinction, the authors said.

Decades ago, scientists thought that major extinctions simply “hastened the inevitable”—ie, dinosaurs were always going to lose out to mammals, and a meteor hitting Earth just happened to hurry it along. More recently, the pendulum of thinking swung back the other way, and others proposed that mass extinctions are a defining biological event—whoever manages to survive in the new landscape then evolves to fill different niches.

But neither model fully explains this picture. 

Jablonski described the finding as “a bit of a wakeup call.” 

“We don’t understand how loss of functional groups relates to loss of biological diversity,” he said. 

A scrambled effect

The team also found that the way species recovered was counter to expectation. 

“We thought the survival pool would lay the foundation for the modern world, it would all just flow from who got through the extinction, but that wasn’t the case,” said Edie. “It gets scrambled. A genus that had many species survive the extinction doesn’t necessarily wind up on top later on.” And, Jablonski added, a mode of life that was packed with survivors hasn’t necessarily stayed that way.

Jablonski explained that many scientists assumed that if you flatten the playing field, as in a mass extinction, the survivors should all take advantage of the opportunity and diversify rapidly. 

“That may have been what happened with mammals, but in the marine ecosystem, it didn’t work that way,” he said. 

This is important information for conservation efforts for the modern ocean, for example, which is under threat from acidification, pollution and overfishing. 

“This is something we really want to understand if we’re thinking about modern extinction and rebound in oceans, and how to manage it,” Jablonski said. “Billions of people depend on the ocean for food, and we can see that reserves and management policies need to take into account the larger ecological structure of the biota, rather than just the individual species.”

Citation: “The end-Cretaceous mass extinction restructured functional diversity but failed to configure the modern marine biota.” Edie, Collins, and Jablonski, Science Advances, May 21, 2025.

Funding: National Science Foundation, NASA, University of Chicago, Smithsonian Institution.

 

May research news from the Ecological Society of America



Ecological Society of America
Pocillopora coral 

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A recent Ecology study of cauliflower corals like the one shown here illustrates how seemingly identical species can play different ecological roles.

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Credit: Thomas C. Adam





The Ecological Society of America (ESA) presents a roundup of five research articles recently published across its esteemed journals. Widely recognized for fostering innovation and advancing ecological knowledge, ESA’s journals consistently feature illuminating and impactful studies. This compilation of papers explores using historical nursery catalogues to predict plant invasion; the value of urban ecosystems for monarch butterflies; how organisms that look identical to us can experience the world in very different ways; incorporating animal communities into assessments of ecosystem health; and tips for tackling river and stream restoration.

 

From Ecological Applications:

Cataloguing past and future plant colonization  
Author contact: Thomas N. Dawes (tomndawes@gmail.com)

Nursery catalogues offer more than pretty pictures of colorful flowers; they can also offer clues to the mystery of why some introduced plants stay put while others spread and become invasive. Combing through New Zealand catalogues dating back to the 1860s, researchers found that a plant’s height, relative availability for sale and frequency of establishment in other parts of the world were linked with successful naturalization in New Zealand. Other traits, such as cold hardiness and shade tolerance, also contributed to establishment, but to a much lesser degree. However, identifying which exotic plants were likely to spread across the landscape proved to be a more difficult task, which suggests that invasiveness depends as much on local environmental conditions as inherent species traits. Despite this uncertainty, the study highlights the usefulness of nursery catalogues for examining historical patterns of non-native plant colonization and identifying plants whose presence should raise a red flag.

Read the article: Historical frequency of plants in nursery catalogues predicts likelihood of naturalization in ornamental species

 

From Ecosphere:

Urban monarchs living the high life
Author contact: E. Erickson (ererickson@ucdavis.edu)

Can urban ecosystems provide high-quality habitat for some species? Recent research on monarch butterflies in California that have acquired a taste for city living may provide some clues. Western monarchs are migratory, like their eastern counterparts, and are facing steep declines; the discovery of winter-breeding butterflies in urban gardens in Northern California led some conservationists to worry that monarchs are being lured away from the migratory lifestyle to take up residence in less suitable cityscapes. However, monthly surveys of abundance, parasite prevalence and egg/larva predation rates revealed that these city slickers are a self-sustaining population that is not simply boosted by the seasonal arrival of migratory kin escaping the cold. Rather than serving as an ecological trap, urban gardens may in fact be critical safe havens for the increasingly beleaguered butterfly. 

Read the article: Neither source nor trap: Urban gardens as habitat for nonmigratory monarch butterflies in Northern California

 

From Ecology:

Similarities among coral siblings only run skin-deep
Author contact: Scott C. Burgess (sburgess@bio.fsu.edu)   

They may be dead ringers for one another, but do not let that fool you — closely related species often deal with life’s hazards in drastically different ways. Case in point are a group of five stony corals collectively referred to as cauliflower corals living in the waters around French Polynesia. Despite being superficially indistinguishable, experimental manipulations revealed that not only do these species colonize the reef at different rates following a cyclone, but the species reacted differently to changes in coral- and algae-eating fish, nutrient pollution and other environmental conditions. Such dissimilarities among species that are hard to tell apart not only influences reef community composition but can also steer the course of reef recovery; while hardier species buffer reef resilience, those less suited to future ocean conditions are at greater risk of extinction. At a time of ever-increasing human pressures, the fact that disturbance can impact doppelganger species in profoundly different ways adds a new wrinkle to ecosystem assessment, management and restoration.   

Read the article: Differential effects of nutrients and consumer pressure on sympatric cryptic coral species (Pocillopora spp.)

 

From Frontiers in Ecology and the Environment:

Expanded animal monitoring improves ecosystem assessments
Author contact: Ana Miller-ter Kuile (ana.miller-ter-kuile@nau.edu)

Animals play fundamental roles in shaping ecosystems, yet the difficulty of monitoring wildlife often restricts their use in assessments of basic ecological health. The authors of this study point out that the omission is especially common in assessments for forests, alpine environments and other terrestrial ecosystems. However, recent technological and methodological innovations could be a game changer. Advancements in drones, camera traps, acoustic recording and environmental DNA tools, among others, along with ever-expanding computational power, have greatly improved scientists’ ability to collect and analyze enormous amounts of data about animal diets, habitat use and more. Incorporating animal-related measures like these will strengthen evaluations of ecosystem condition and vulnerability to human impacts. For example, in the Brazilian Atlantic Forest, bird community metrics were better at detecting human disturbances than traditional metrics. A better understanding of how animal communities influence ecosystem processes and functions will create a more complete picture of an ecosystem’s status, benefiting the development of effective management, conservation and restoration strategies.

Read the article: Functionalizing ecological integrity: using functional ecology to monitor animal communities

 

From Ecological Monographs:

Freeing freshwater fish from fragmentation   
Author contact: Lukian M. D. Adams (adamslukian@gmail.com)

Dams, weirs and other man-made edifices restrict the movement of riverine fish, and there is growing interest in removing such structures in order to reverse declines in freshwater fish. But with millions of these barriers throughout the world, where to begin? New research finds that in Australia’s largest river basin, certain barrier characteristics — how high, how many and where they were positioned in the waterway — were mainly responsible for preventing fish populations from intermingling, while low water levels made it hard for fish to maneuver around obstacles. Less mobile fish were especially hard-hit by artificial barriers, suggesting that infrastructure like fish ladders that help fish circumvent obstacles should be built with more sedentary swimmers in mind. Given the limited funds typically available for river restoration, the authors propose that focusing remediation efforts on locations featuring these barrier types and species would be the most efficient means of improving fish passage.

Read the article: Barrier features, fish traits, and river flows drive fragmentation of freshwater fish

 

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Learn more about the upcoming ESA Annual Meeting, August 10–15, on the meeting website.
ESA invites press and institutional public information officers to attend for free. To register, please contact ESA Public Affairs Manager Mayda Nathan directly at 
mayda@esa.org.

The Ecological Society of America, founded in 1915, is the world’s largest community of professional ecologists and a trusted source of ecological knowledge, committed to advancing the understanding of life on Earth. The 8,000 member Society publishes six journals and a membership bulletin and broadly shares ecological information through policy, media outreach and education initiatives. The Society’s Annual Meeting attracts 4,000 attendees and features the most recent advances in ecological science. Visit the ESA website at https://www.esa.org

 

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