08/21/2026
A new CDC study identified 199,565 emergency room visits involving severe, repeated vomiting linked to frequent ma*****na use.
The condition is known as cannabis hyperemesis syndrome, or CHS, and young people were hit especially hard. From October 2025 through May 2026, CHS-related ER visits were highest among 15- to 24-year-olds, followed by adults aged 25 to 34.