So, what do Batman and J.R.R. Tolkien have in common? Post Traumatic Stress Disorder. It used to be called "Shellshock" and it can be really really really destructive. In this episode of Crash Course Psychology, Hank lays out the low down on PTSD and how trauma can affect the brain. Plus, a look at how addiction can play into trauma and the different types of treatments used to help those afflicted. Want more videos about psychology? Check out our sister channel SciShow Psych at null! -- Chapters: Introduction: J.R.R. Tolkien 00:00 Post-Traumatic Stress Disorder (PTSD) 1:57 PTSD & Addiction 3:24 Causes of PTSD 4:02 Risk Factors of PTSD 5:13 PTSD & the Brain 5:46 Post-Traumatic Growth 6:31 Addiction & Dependencies 7:09 Dual-Diagnosis Treatment Model 9:01 Review & Credits 10:00 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: null