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Columbia University's Mailman School of Public Health


Intensive New York City housing remediation effort cut violations in half but did not yield immediate health improvements

A new study at Columbia University Mailman School of Public Health found that NYC's most aggressive housing quality enforcement programs reduced hazardous housing violations in targeted buildings by half, but did not lead to measurable changes in short-run health care utilization. Despite significant housing quality improvements, the a...

SourceColumbia University's Mailman School of Public Health·JournalJournal of Policy Analysis and Management·DateNov 24, 2025

Scientists use computer model to improve hospitals’ ability to limit spread of drug-resistant infections

A new analytical tool can improve a hospital's ability to limit the spread of antibiotic-resistant infections by inferring asymptomatic carriers. The method, developed by Columbia University researchers, combines multiple data sources to predict the spread of an infection in the hospital setting.

SourceColumbia University's Mailman School of Public Health·JournalNature Communications·TypeExperimental study·DateNov 19, 2025

Menstrual health education and programs must reach all young adolescents

Researchers emphasize that menstrual health education is essential for young adolescents globally, with a focus on menarche and puberty education. The authors highlight the need for strengthening national and regional monitoring of menstrual health to address the critical underprioritization of this issue.

SourceColumbia University's Mailman School of Public Health·JournalThe Lancet Child & Adolescent Health·DateNov 5, 2025

Study reveals new evidence: stress alters metabolic hormone with health consequences

Researchers at Columbia University discover that psychological stress acutely alters FGF21 levels in the bloodstream, highlighting its potential to link mental states to metabolic responses. The study found that individuals with stronger social ties and emotional well-being have lower FGF21 levels, while those experiencing loneliness o...

Choosing safer personal care products can help lower exposures to risky chemicals

A study of Black and Latina women in South Los Angeles found that choosing safer personal care products can significantly lower exposures to risky chemicals. Women who avoided fragrance, parabens, and oxybenzone had lower levels of these chemicals in their urine compared to those who did not avoid them.

SourceColumbia University's Mailman School of Public Health·JournalEnvironmental Justice·TypeObservational study·DateSep 17, 2025

Behind the numbers: The shift in psychiatric beds – large for-profit chains expand as public hospitals retreat

The number of inpatient psychiatric beds barely changed from 2011 to 2023, but a shift occurred in bed ownership: standalone facilities with more care being delivered at specialized hospitals, increasingly owned by large for-profit chains. This trend raises concerns over safety and quality-of-care

Potential molecular link between air pollutants and increased risk of Lewy body dementia revealed

A team of researchers found a possible molecular link between air pollution and an increased risk of developing Lewy body dementia. Exposure to fine particulate air pollution (PM2.5) triggered the formation of abnormal alpha-synuclein clumps in mice, similar to those found in patients with Lewy body dementia.

Study Reveals Details of Overactive Immune System in Patients with Chronic Fatigue Syndrome (ME/CFS)

Researchers analyzed blood samples from 56 ME/CFS patients and 52 healthy controls, revealing disruptions in metabolic processes and immune dysregulation. The study suggests specific intracellular pathways correlate with symptoms, leading to potential biomarkers for targeted interventions.

SourceColumbia University's Mailman School of Public Health·Journalnpj Metabolic Health and Disease·TypeObservational study·DateSep 1, 2025

Historically redlined areas face disparities in emergency medical access and serious consequences for patients, new study finds

A new study reveals that communities once labeled as 'hazardous' are significantly less likely to receive timely emergency medical services compared to those deemed 'most desirable.' The findings highlight the enduring impact of structural racism on access to critical, life-saving care.

Large study uncovers specific impacts of flooding on older adult health

A large study examines 17 years of Medicare hospitalization claims and major flooding events, finding increased rates of specific health issues among older adults. The research highlights the need for targeted outreach, robust evacuation planning, and improved access to medical services to protect public health during climate change.

SourceColumbia University's Mailman School of Public Health·JournalThe Lancet Planetary Health·TypeData/statistical analysis·DateJul 30, 2025

New York City intersections see one-third fewer pedestrian injuries with longer head-start intervals

A new study from Columbia University's Mailman School of Public Health found that giving pedestrians a 7-second head start at traffic lights reduces total pedestrian injuries by 33%. The reduction in injuries is consistent across all intersection types, with the most pronounced impact seen during the daytime.

Top stories sibling study finds early education boosts brain power

A recent study by Columbia University researchers found that early education has a significant impact on adult cognition, especially for individuals from low-income backgrounds. The study compared adult siblings in Indonesia and isolated education's effects on quantitative and abstract reasoning, separate from family background factors.

SourceColumbia University's Mailman School of Public Health·JournalJournal of Human Capital·TypeData/statistical analysis·DateJul 2, 2025

Urinary metal exposure linked to increased risk of heart failure, landmark study finds

A new multi-cohort study found that exposure to certain metals detected in urine is associated with a higher risk of heart failure. The study analyzed over 10,000 adults across diverse geographic and racial backgrounds and observed consistent associations between elevated urinary metal levels and increased HF risk.

SourceColumbia University's Mailman School of Public Health·JournalJournal of the American College of Cardiology·DateJun 23, 2025

Evidence to support state policies regulating teen use of social media is limited, study finds

A study published in the Milbank Quarterly found that evidence supporting state policies regulating teen social media use is limited. The authors analyzed 69 state social media legislative initiatives and concluded that while there is some association between social media use and adverse adolescent outcomes, the causal effects of harm ...

Study finds significant declines in maternal mental health across US

A new study published in JAMA Internal Medicine reveals a concerning decline in self-reported mental health among mothers in the US between 2016 and 2023. The percentage of mothers reporting excellent mental health dropped sharply from 38% to 26%, while those rating their mental health as fair or poor increased by 63.6%.

Burden of coexisting hypertension and type 2 diabetes in US adults is increasing and linked to substantially higher mortality risk

A study from Columbia University's Mailman School of Public Health found that coexisting hypertension and type 2 diabetes nearly doubled over two decades, with about two-thirds of participants with diabetes also having hypertension. This combination is linked to substantially higher mortality risk compared to having neither condition.

Is it time to redefine the public health workforce? New research proposes a broader, more inclusive approach

A new paper calls for a redefinition of the public health workforce, recognizing professionals outside government agencies who contribute to public health. An intersectional framework proposes two tiers: Essential Public Health Services and Foundational Public Health Services.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Public Health·DateMay 14, 2025

Foot traffic can predict COVID-19 spread in New York City neighborhoods

A new study uses foot traffic data to enhance neighborhood-level COVID-19 forecasts in New York City. The research reveals how routine activities like dining out and shopping became major transmission pathways, enabling the development of a behavior-driven model that outperforms traditional forecasting methods.

SourceColumbia University's Mailman School of Public Health·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateMay 7, 2025

New research reveals how physiology-inspired networks could improve political decision-making

Researchers at Columbia University's Mailman School of Public Health have developed a framework for rethinking political decision-making by drawing inspiration from physiological systems. The study found that certain governance models are more effective than others in balancing democratic values, efficiency, and technical limitations.

Can technology revolutionize health science? The promise of exposomics

Researchers outline key steps to harness exposomics for precision medicine and disease prevention, leveraging cutting-edge technologies and tools. The approach integrates advanced tools to understand how environmental, social, and psychological factors collectively interact with biology, creating the first complete picture of health de...

SourceColumbia University's Mailman School of Public Health·JournalScience·TypeNews article·DateApr 24, 2025

Rigid grant funding undermines community health centers’ ability to serve vulnerable New Yorkers

A new study by Columbia University Mailman School of Public Health researchers highlights the limitations of inflexible grant funding on community health centers (CHCs) in New York City. CHCs, which serve one in nine New Yorkers, operate on thin margins and struggle to provide comprehensive care due to restrictive state and local grants.

SourceColumbia University's Mailman School of Public Health·JournalBMC Health Services Research·TypeSurvey·DateApr 23, 2025

New research lays groundwork for early detection of Alzheimer’s disease

A new study from Columbia University Mailman School of Public Health found significant associations between cognition and established risk factors for Alzheimer's disease in individuals aged 24-44. The researchers used biomarkers related to cognitive impairment and cardiovascular health to predict long-term trajectories of cognitive de...