What Is the Opioid Crisis: Causes, Waves, and the Path Forward
The opioid crisis killed over 500,000 Americans between 1999 and 2019. Understand the three waves, the neuroscience of addiction, Purdue Pharma's role, and what treatments actually work.
August 2025
May 2022
What Is Addiction?
Addiction explained: from the dopamine reward system and prediction error neurons to the brain disease model controversy, Rat Park, the opioid crisis, genetic heritability, and evidence-based treatments including medication-assisted therapy.