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Our Research
Barriers and Facilitators to Resolving Older Adult Homelessness Through Stays With Family: Qualitative Findings From the HOPE HOME Study
Journal of Social Distress and Homelessness •
February 8, 2022
Our Research
Barriers and Solutions To Advance Care Planning Among Homeless-Experienced Older Adults
Journal of Palliative Medicine •
September 22, 2020
Our Research
Barriers to Colorectal Cancer Screening and Surveillance in Homeless Patients: A Case Report and Policy Recommendations
Annals of Surgery Open •
September 1, 2022
News
News
Bay Area Homelessness Could Be Solved With $11.8 Billion, Says New Report
San Francisco Chronicle •
June 2, 2021
Research Area
Behavioral Health
The stress of experiencing homelessness can amplify previous mental illness and trigger anxiety, depression, fear, substance use, and sleeplessness.
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Behavioral Health and Homelessness
Behavioral health challenges both contribute to and are exacerbated by homelessness. To better understand behavioral health and homelessness, we examined data from the California Statewide Study of People Experiencing Homelessness. Our latest report examines the relationship between homelessness, substance use, and mental health, providing critical insights for policymakers, program leaders, Continuum of Care leaders, and healthcare systems. Key Findings Nearly half (48%) of people experiencing homelessness in California have complex behavioral health needs—regular drug use, heavy drinking, hallucinations, or recent psychiatric hospitalization. About one-third (35%) report regular drug use; 42% reported that they began to use regularly after the first
Reports
Behavioral Health and Homelessness
March 19, 2025
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Benioff Homelessness and Housing Initiative
The Benioff Homelessness and Housing Initiative (BHHI) provides accurate, timely policy-oriented research about homelessness for local, state, and national policymakers and practitioners. Funded by a generous gift from Marc and Lynne Benioff and based at the UCSF Action Research Center for Health Equity, BHHI aims to be a trusted source for evidence-based practice, policy, and scalable solutions—turning evidence into action to prevent and end homelessness.
News
Berkeley's cash-for-RV program helps clear encampment, offers model for homeless solutions
September 15, 2025
News
Person
Berty Arreguin, PhD
Berty is a Mexican-American scholar, a first-generation college graduate, and the first in her family to earn a doctoral degree. Born and raised in Fresno, California—a community deeply affected by persistent health inequities; including many of her own family—she was inspired early on to pursue meaningful change through scholarship. This commitment led her to complete a PhD in Medical Sociology at UCSF. Her research centers on understanding how social, emotional, and structural forces intersect to shape health outcomes and healthcare experiences, particularly among racially and socioeconomically diverse populations living with diabetes. Drawing on both quantitative and qualitative methodologies, Berty brings
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BHHI Education Programs
Due to funding constraints, we are not currently recruiting for these programs. For updates, connect with us at the links below. Postdoctoral Scholars Program The BHHI postdoctoral scholars training program educates the next generation of strategic scientists empowered to address upstream causes of homelessness. Our projects rely on various research methodologies including quantitative methods, qualitative methods, or mixed methods and utilize a wide-ranging set of research designs including longitudinal, cross-sectional, quasi-experimental, natural experiments, implementation and translational science, and policy evaluation. Scholars work closely with BHHI faculty, including an assigned mentor from within BHHI, to conduct research related to homelessness and
BHHI Guidance on COVID-19 Vaccination Planning for Homelessness Response Systems
CA Homeless Coordinating & Financing Council, Benioff Homelessness and Housing Initiative, California Health Care Foundation •
February 2, 2021
News
Biotech Takes On Racial and Social Equity. Are the Efforts Sustainable?
San Francisco Business Times •
March 24, 2021
News
Black People Are Increasingly Overrepresented in Sacramento Homeless Population, Report Says
Sacramento Bee •
June 11, 2024
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News
Boomers Own Half of U.S. Wealth. So Why Are We Seeing More Homeless Boomers?
The Wall Street Journal •
May 13, 2024
Opinion
Breaking the Silence: A Call for Rapid Hepatitis C Testing to Save Black Lives in America
Visible •
February 20, 2024
Blog
Breaking the Silence: A Call for Rapid Hepatitis C Testing to Save Black Lives in America
Meghan Morris •
May 17, 2024
Our Research
Brief Report: Heterogeneous Preferences for Care Engagement Among People With HIV Experiencing Homelessness or Unstable Housing During the COVID-19 Pandemic
Journal of Acquired Immune Deficiency Syndrome •
June 1, 2022
Our Research
Bringing COVID-19 Vaccines to High Risk Populations—Like Those Who Are Homeless—Requires a Tailored Approach
BMJ Opinion •
March 22, 2021
News
Building Emergency Housing to Meet the Unique Needs of Older Adults
Route Fifty •
June 21, 2024