References (some references are not cited or directly used, but contain additional useful information) Drug abuse rates higher in teens with ADHD – Futurity. (2013) Retrieved from http://www.futurity.org/drug-abuse-rates-higher-in-teens-with-adhd/ Hall, D. A., Stanis, J. J., Avila, H. M., & Gulley, J. M. (2008). A comparison of amphetamine-and methamphetamine-induced locomotor activity in rats: evidence for qualitative differences in behavior.Psychopharmacology, 195(4), 469-478. retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2423722/ Krans, B. (2012). Were Hyperactive Hunter-Gatherers Better Adapted Than Their Peers? ADHD and Evolution. Retrieved from http://www.healthline.com/health/adhd/evolution#1 Lee, J. (Ed.). (2011). Why ADD/ADHD Increases the Odds of Addiction - And How to Get Better. Retrieved from http://www.choosehelp.com/topics/mental-health/why-add-adhd-increases-the-odds-of-addiction-and-what-to-do.html Robb, A. (2006) Managing ADHD in a Patient With Substance Use Disorder. Retrieved from http://www.medscape.org/viewarticle/549218 Sherman, C. (2007). Addiction and ADHD Adults. Retrieved from http://www.additudemag.com/adhd/article/1868.html Tenenbaum, D. (2013) Impulsive, rewards and Ritalin: monkey study shows tighter link. Retrieved from www.news.wisc.edu/22299