I found this fantastic chart from MIT that has an overview of the effects of various drugs on the body. The top portion is licit and illicit drugs. The portion I took a screenshot from is here. Simply wonderful overview of the neurotransmitters. The entire chart is available at this link: http://ocw.mit.edu/ans7870/SP/SP.236/S09/lecturenotes/drugchart.htm
My kids are doing a project on the brain and related topics and creating infographics (more on that in a later post). One group found some amazing videos on sleep. Here they are. Enjoy.