New Research on Cannabinoid Hyperemesis Syndrome (CHS) with Dr. Codi Peterson and Megan Mbengue

Cannabinoid Hyperemesis Syndrome (CHS) is not a myth or a result of contaminated cannabis, but a real, stress-triggered condition linked to chronic, heavy THC use—especially in genetically predisposed individuals. In the largest study of its kind, over 1,100 people reported experiencing CHS, with a striking pattern: most developed symptoms after years of daily cannabis use, but those who vaped concentrates saw symptoms emerge in just 1–2 years, compared to 10+ years for flower smokers. The key insight? CHS isn’t a direct reaction to smoking—rather, it unfolds in three phases: a prodromal phase with morning nausea and heartburn (reported by 95% of participants), followed by a hyperemetic phase of uncontrollable vomiting, and finally a recovery phase after quitting cannabis. The research debunks the myth that pesticides cause CHS, showing no symptom differences across legal, black market, or home-grown sources. Instead, the evidence points to THC’s overstimulation of the endocannabinoid system—like a buoy that eventually capsizes under constant pressure—leading to a loss of homeostasis. The authors urge a shift from blaming cannabis to empowering users with early warning signs and harm reduction strategies, advocating for whole-plant, balanced cannabis use and regular tolerance breaks. The takeaway isn’t to fear cannabis, but to respect its power.