In late April 2010, an inde­pen­dent expert pan­el orga­nized by the NIH released a thought­ful report on the state of the sci­ence for pre­ven­tion of Alzheimer’s Dis­ease and cog­ni­tive decline*. The report sum­ma­rizes the panel’s review of the sci­en­tif­ic lit­er­a­ture by saying: “Firm con­clu­sions can­not be drawn about the asso­ci­a­tion of mod­i­fi­able risk fac­tors with…