I was posting in regards to other comments about studies and no associated risk of driving after smoking marijuana. I concur to a degree but many on this board feel it is perfectly safe and without risk to smoke marijuana, I am just pointing out that there are associated risks that people should be aware of. I eat red meat and donuts plus consume coffee and even have a hard cider now and again.Please Register or Log in to view the hidden image! I agree there is no reason to smoke marijuana but the studies are valid scientific studies published in peer review journals which are scientific. Please post the journal publishing for Jamacian study, I am interested in reading it. I posted all the citations. I use Tashkin quite often as citations for our submissions. He is well established in the medical thoracic community.