Cannabis and Health

The World Health Organization’s addition of Cannabis Hyperemesis Syndrome (CHS) to its diagnostic manual took effect Oct. 1 and has been adopted by the CDC, giving U.S. clinicians a dedicated code to identify and track the vomiting disorder linked to chronic cannabis use. A Nov. 24 JAMA Network Open study reports CHS-related emergency room visits rose about 650% from 2016 to a pandemic peak and remain elevated, with experts pointing to increased use of high-potency THC products even as causation is not fully established.