In the professional literature the general theme seems to be that more active lifestyles predict preserved cognitive function. That’s one main theme that I found in professional literature. There is both cross-sectional data and longitudinal data looking at this. One of my frustrations as I try to learn about this myself is that few studies cite the same authors or works. In some of the fields like learning disability or dementia or things that I am more familiar with are head injury, recovery from head injury. I can feel that a lot of people are going to get excited of any paper because there is the work that we all know about and here I found a different collection and different representation every time I picked up a paper. It seems like their literature was all over the place and there wasn’t a lot of consensus on who is doing what or a lot of recognition that this has already been done before.