

Ask the Expert: What is Cannabis Use Disorder and Who is at Risk?
In this Ask the Expert video, Dr. Margaret Haney, Professor of Neurobiology and Director of the Cannabis Research Laboratory at Columbia University Medical Center, discusses cannabis use disorder (CUD) and key risk factors. Although cannabis is often perceived as low-risk, an estimated 5.8% of the population meets criteria for CUD, with severity ranging from mild to moderate and severe.1 Research shows that individuals with more severe CUD experience diminished productivity,
20 hours ago


Ask the Expert: What is the HEALing Communities Study?
In this Ask the Expert interview, Dr. Redonna Chandler provides an overview of the HEALing Communities Study (HCS)–the largest addiction...
Jun 5, 2025










