剧情：
MichaelMosleyexploresthelatestscienceabouthowourpersonalitiesarecreated-andwhethertheycanbechanged. Despiteappearances,Mosleyisapessimistwhoconstantlyfretsaboutthefuture.Hewantstoworrylessandbecomemoreofanoptimist. Hetriesouttwotechniquestochangethisaspectofhispersonality-withsurprisingresults. Andhetravelstothefrontie..ccc
