Last night was a repeat. The show had aired before. Ross Cortese developed this community as a Leisure World back in the 60's. He even built houses there for his mother as well as Nellie Gail Moulton who sold him a large part of her ranch on which he built the development. The story is his estate wanted royalties for continued use of the name Leisure World so to incorporate the residential community annexed an adjoining shopping center and renamed itself Laguna Woods Village.
It is a good place to run such a study. I would estimate the median/average age to be about 78 in LWV, about 10 years older than in The Villages.
Here is their website.
http://www.lagunawoodsvillage.com/index.cfm
My former spouse who is a very social person now resides there and is quite happy. (Another reason I am considering The Villages) lol. I believe adequate continuing socialization is a key factor in holding off dementia and premature death.