http://articles.mercola.com/sites/articles/archive/2001/07/11/artificial-light2.aspxPart 2 of 3 ( Part 1 , Part 3 ) By John Ott Earlier Studies With Laboratory Animals Going back still further, the studies that led to the Sarasota school children project were done during the 1950s and 1960s and involved keeping laboratory animals underenCommunityServer 2008.5 SP1 (Build: 31106.3070)