Sources:

http://www.drugwarfacts.org/cms/Causes_of_Death#sthash.WMJZesrO.dpbs

http://herb.co/2016/01/12/many-people- died-overdosing- marijuana/

http://luxury.rehabs.com/heroin-addiction/death- mortality-rates/

http://www.sciencedaily.com/releases/2014/11/141110161123.htm

http://www.washingtonpost.com/blogs/wonkblog/wp/2014/10/22/no-marijuana- use-doesnt- lower-

your-iq/