Cannabinoid hyperemesis syndrome, also known as “scromiting,” i.e. “scream-vomiting,” is a serious and rising concern–and the data show it’s increasingly common. Around 18% of daily weed users experience some form of it, per a recent study funded by the National Institute of Mental Health. That translates to an estimated more than 7 million US adults—a national prevalence rate of close to 3%. The marijuana industry has assured vulnerable populations that marijuana is harmless, yet millions of Americans continue to be harmed by it. So don’t tell us there’s no weed health crisis in this country.