Portrait of Helena Hansen

Dr. Helena Hansen, MD PhD

Want to learn more about the current drug overdose crisis? Hear from Helena Hansen, a psychiatrist-anthropologist and international leader in the field of addiction medicine.

The Four Waves of the Opioid Crisis

In the U.S., opioid overdose death data show an evolution of four separate but overlapping waves. Let's take a closer look at each wave.

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The Two Tiers of Care for Opioid Use Disorder

Learn how growing inequities in opioid use disorder treatment initiation, retention, and completion for Black and Latino patients compared to White patients have highlighted a two-tiered treatment system.

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What is Harm Reduction?

Harm reduction can refer to many life-saving efforts that include improving safety for drug use, medications for opioid withdrawl maintenance, and social support systems.

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