title: Happiness and life satisfaction prospectively predict self-rated health, physical health, and the presence of limiting, long-term health conditions.
abstract: OBJECTIVE
  To examine the effect of happiness and life satisfaction on health.
  
  
  METHODS
  Longitudinal data from waves 1 and 3, conducted in 2001 and 2004, respectively, of the Household Income and Labour Dynamics in Australia survey.
  
  
  METHODS
  Australia.
  
  
  METHODS
  A total of 9981 respondents aged 18 years and older.
  
  
  METHODS
  Outcomes were self-reported health; the absence of long-term, limiting health conditions; and physical health. Happiness was assessed with the following question: "During the past 4 weeks, have you been a happy person"? Life satisfaction was determined with the following question: "All things considered, how satisfied are you with your life"?
  
  
  METHODS
  We used multiple regression analysis to estimate odds ratios (ORs), beta coefficients (beta), and 95% confidence intervals (CIs) for the associations between baseline happiness or life satisfaction and health at wave 3.
  
  
  RESULTS
  Baseline happiness and life satisfaction both were positively associated at wave 3 with excellent, very good, or good health (OR = 1.50, CI = 1.33-1.70, p < .0001; and OR = 1.62, CI = 1.27-2.08, p < .0001, respectively); with the absence of long-term, limiting health conditions (OR = 1.53, CI = 1.35-1.75, p < .0001; and OR = 1.51, CI = 1.25-1.82, p < .0001, respectively); and with higher physical health levels (beta = .99, CI = .60-1.39, p < .0001; and beta = .99, CI = .20-1.78, p < .0145, respectively).
  
  
  CONCLUSIONS
  This study showed that happier people and those who were more satisfied with their lives at baseline reported better health (self-rated health; absence of limiting, long-term conditions; and physical health) at the 2-year follow-up when adjusted for baseline health and other relevant covariates.
authors.affiliation: Department of Health Promotion, Social and Behavioral Health Sciences, College of Public Health, University of Nebraska Medical Center, 986075 Nebraska Medical Center, Omaha, NE 68198-6075, USA. msiahpush@unmc.edu
authors.forename: Mohammad
authors.initials: M
authors.lastname: Siahpush
authors.forename: Matt
authors.initials: M
authors.lastname: Spittal
authors.forename: Gopal K
authors.initials: GK
authors.lastname: Singh
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006240:Happiness; D015438:Health Behavior; D006293:Health Promotion; D006304:Health Status; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010549:Personal Satisfaction; D011446:Prospective Studies; D012737:Sex Factors; D012959:Socioeconomic Factors