title: Subjective age and cognitive functioning: a 10-year prospective study.
abstract: OBJECTIVE
  The present study examines whether subjective age (i.e., how old or young individuals feel) is associated with cognitive functioning and tests potential mediators of this association.
  
  
  METHODS
  Data from the two waves of measurement of the Midlife in the United States survey were used, with assessments conducted at the first wave in 1994-1995 and at the second wave in 2004-2006.
  
  
  METHODS
  A total of 1,352 men and women aged from 50 to 75 years at baseline (M: 59.32; SD: 6.72).
  
  
  METHODS
  Subjective age, body mass index (BMI), physical activity, and the covariates sex, age, education, marital status, and disease burden were assessed at baseline to predict episodic memory and executive function measured 10 years later.
  
  
  RESULTS
  Multiple regression analysis revealed that a younger subjective age at baseline was prospectively associated with better episodic memory and executive function. Bootstrap analysis indicated that the association of subjective age with episodic memory and executive function was partially mediated by BMI and frequency of physical activity respectively.
  
  
  CONCLUSIONS
  Even after accounting for chronological age and other risk factors for cognitive decline, such as disease burden and sedentary lifestyle, the subjective experience of aging predicts cognitive functioning in old age.
authors.affiliation: EA 4556 Epsylon, Department of Sport Sciences, Psychology and Medicine, University of Montpellier and St-Etienne, Montpellier, France. Electronic address: yannick.stephan@univ-montp1.fr.
authors.forename: Yannick
authors.initials: Y
authors.lastname: Stephan
authors.affiliation: CRIS EA 647, Department of Sport Sciences, University of Lyon 1, Lyon, France.
authors.forename: Johan
authors.initials: J
authors.lastname: Caudroit
authors.affiliation: EA 3742, Department of Sport Sciences, University of Grenoble, Grenoble, France.
authors.forename: Alban
authors.initials: A
authors.lastname: Jaconelli
authors.affiliation: Department of Geriatrics, College of Medicine, Florida State University, Tallahassee, FL.
authors.forename: Antonio
authors.initials: A
authors.lastname: Terracciano
mesh_terms: D000367:Age Factors; D000368:Aged; D000375:Aging / Q000523:psychology*; D015992:Body Mass Index; D003071:Cognition; D004522:Educational Status; D056344:Executive Function; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D017533:Marital Status; D061212:Memory, Episodic; D008875:Middle Aged; D009043:Motor Activity; D057566:Self Report; D012737:Sex Factors
keywords: BMI; Subjective age; episodic memory; executive function; physical activity; prospective study