Mysterious, rare illness linked to smoking weed

For many marijuana users, the drug delivers a soothing, therapeutic effect. But for a small number of people, smoking results in a unpleasant aftermath of serious vomiting and stomach pain.
The mysterious illness—called cannabinoid hyperemesis syndrome (CHS)—was discovered in 2004, NPR reports. However, it didn’t receive much attention until recently, when doctors began to identify more cases of the syndrome.

Mysterious, rare illness linked to smoking weed