championship winner. he is joining us from dallas. doctor, let s start off with this study. why does this study matter? this is really an amazing discovery. what we found for the first time a protein hormone that occurs naturally in the body that can improve short term and long-term memory. jenna: instead of being a emotional thing, i think some of is think about what we remember as emotional. this study is saying there is a physical side of memory? yes. we actually found a compound that in laboratory animals at least, improved their memory. what they did, they used something called shock avoidance. they gave small electric shock to laboratory rats and taught them to avoid the dark areas of a maze and prefer the light areas. something they never do. what they found is igf-2 levels increased, when they were shocked and it persisted for hours afterwards. completing a memory circuit. so, ron is joining us