Effects of Secondhand Smoke from Marijuana on Vascular Function


  1. Matthew Springer, PhD
Research Fields: 
Secondhand Smoke

Humans and rats exposed to even a few minutes of secondhand smoke from tobacco experience a drop in vascular endothelial function (the ability of their arteries to enlarge to pass more blood when needed by the tissues). We have shown that rats exposed to diluted smoke from the burning tips of marijuana cigarettes experience a similar drop in function, although in the case of marijuana, the impairment is longer lasting. This occurs even if the marijuana does not contain cannabinoids; it is an effect of the smoke itself.