Fentanyl most likely spread because of heroin and prescription pills shortages, and also because it was cheaper for drug wholesalers than heroin.

A new study is using electronic health records to guide management of newborn weight loss.

Thirty-five years after its launch, Ward 86 continues to be a global leader in HIV care and has significantly influenced milestones in treatment and prevention.

UCSF experts in gene editing and bioethics weigh in on the news of Chinese researcher He Jiankui’s announcement of the birth of the first babies who had their DNA edited as embryos.

Scientists at UCSF have developed an innovative tool to peer into the secret life of brain. They hope to use the device to learn more about how memories form, and how past experiences influence decisions.

A nationwide study of more than 63,000 cases of cardiac arrest found that ambulances on average took nearly four minutes longer to handle calls from low-income areas than high-income communities.

Patients with moderate to severe depression reported significant improvements in mood when researchers precisely stimulated a brain region called the orbitofrontal cortex.

UCSF scientists have figured out why some lung cancers become drug-resistant after initially responding to targeted therapies.