NEWS: University of California researchers have found that vaping THC cartridges may trigger earlier onset of the debilitating condition CHS, which causes severe nausea and vomiting in heavy cannabis users. Whilst the Study finds cannabis vaping more harmful than nicotine vaping Researchers find correlation between vaping cannabis and other tobacco use Researchers find cannabis e cigarettes and oil to be harmful The Daily Evergreen Cannabis Vaping Liquids May Have Toxic Metal Particles Even Before First Use: Study