One Minute of Secondhand Marijuana Smoke Impairs Blood Vessel Function

One Minute of Marijuana Secondhand Smoke Exposure Substantially Impairs Vascular Endothelial Function, Journal of the American Heart Association, July 27, 2016

One minute of exposure to marijuana secondhand smoke substantially impairs endothelial function in rats for at least 90 minutes, considerably longer than comparable impairment by tobacco secondhand smoke.

Impairment of FMD does not require cannabinoids, nicotine, or rolling paper smoke. Our findings in rats suggest that SHS can exert similar adverse cardiovascular effects regardless of whether it is from tobacco or marijuana.