Would you like some more sources then? [spoiler]http://www.thecannabist.co/2015/02/02/marijuana-research-colorado-health-effects-asthma-cancer-stoned-driving/28946/ http://www.webmd.com/mental-health/addiction/marijuana-use-and-its-effects?page=2 http://www.drugfreeworld.org/drugfacts/marijuana/short-and-long-term-effects.html http://alcoholism.about.com/od/pot/a/effects.-Lya.htm http://www.livescience.com/24558-marijuana-effects.html [/spoiler] just for a few. All the points I listed are facts.