Research has made great progress in recent years to better understand how individual differences predict consequential healthy aging outcomes and why and when individual differences may matter in everday life. This final chapter integrates and discusses the contributions in this volume around three broad sections. The first section relates to “new” constructs beyond the Big Five personality traits. The second section discusses “new” assessment and analytical methods. Finally, the third section refers to “new” questions in the field of personality and healthy aging.