Behavioral Health
The stress of experiencing homelessness can amplify previous mental illness and trigger anxiety, depression, fear, substance use, and sleeplessness.
UCSF BHHI behavioral health research focuses on people’s access to permanent housing, mental health services, shelters, and substance abuse support to prevent and end homelessness in the United States.
Related Resources
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Our Research
Nonfatal Overdose and Naloxone Possession Among Homeless Adults in California Who Use Illicit Substances
October 30, 2026
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Our Research
Smoke-Free Home Intervention in Permanent Supportive Housing: A Cluster Randomized Clinical Trial
September 14, 2026
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Our Research
Contingency Management for Smoking Cessation Among Adults Experiencing Homelessness
August 11, 2026
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Our Research
Attitudes toward tobacco-free and cannabis-free policies among residents in permanent supportive housing who use tobacco, cannabis, and other substances
April 15, 2026
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Over 60% of permanent supportive housing (PSH) residents smoke cigarettes, and over 50% use cannabis. Co-use of tobacco and cannabis may be linked with other substance use. We explored attitudes toward tobacco-free and cannabis-free policies among PSH residents who smoked cigarettes, co-used tobacco and cannabis, or other substances.
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