behaviors in your life that are so difficult that they, you know, they make your life difficult to navigate. we see it obviously in wartime and see it after trauma, after abuse and rape and after things like car accidents. >> we didn't hear it until after vietnam. >> we still. >> one thing about this case, ptsd can create all of those as well as triggering panic attracts, in a situation that's highly negative and then you have a problem driving in snow because you have an association. >> larry: how do you get rid of it? >> desensitization issues. >> there's a thing about how it works. it locks things in. part walls off and to be healthy we have to function as an entire brain. the trauma locks off parts from the part of the brain that's conscious. >> even with scans with people with ptsd you can see the prefrontal cortex and the limbic