Être optimiste pourrait ne pas être sans conséquence sur le vieillissement du cerveau.
Voir la vie du bon côté peut-il avoir des répercussions à long terme sur la santé de notre cerveau ?
Chronique diffusée le 25 juin 2026. L’ensemble des chroniques est accessible sur une playlist dédiée.
Pour aller plus loin :
« Optimisme et cerveau : cette étude révèle un lien surprenant avec le risque de démence », par Marie Lanen. Publié sur Doctissimo, le 17/04/2026. Consulté le 18/05/2026. Lien : https://www.doctissimo.fr/sante/maladies/maladies-neurologiques/optimisme-et-cerveau-cette-etude-revele-un-lien-surprenant-avec-le-risque-de-demence-764638.htm.
Un autre épisode du podcast en lien :
« La Tête Dans Le Cerveau #193 – Le préservant régime alimentaire ».
Sources :
Baumgartner J.N. et al. (2018). Investigating the relationship between optimism and stress responses : a biopsychosocial perspective. Personality and individual differences, 129 : 114-118.
Boehm J.K. et al. (2013). Association between optimism and serum antioxidants in the midlife in the United States study. Biopsychosocial science and medicine, 75 (1) : 2-10.
Brissette I. et al. (2002). The role of optimism in social network development, coping, and psychological adjustment during a life transition. Journal of personality and social psychology, 82 (1) : 102-111.
Caracciolo B. et al. (2011). The symptom of low mood in the prodromal stage of mild cognitive impairment and dementia : a cohort study of a community dwelling elderly population. Journal of neurology, neurosurgery and psychiatry, 82 (7) : 788-793.
Chen Y. et al. (2025). The distribution of optimism across sociodemographic groups in 22 countries. Scientific reports, 15 (14553) : 1-12.
Gawronski K.A. et al. (2016). Dispositional optimism and incidence of cognitive impairment in older adults. Biopsychosocial science and medicine, 78 (7) : 819-828.
Giltay E.J. et al. (2007). Lifestyle and dietary correlates of dispositional optimism in men : the Zutphen elderly study. Journal of psychosomatic research, 63 (5) : 483-490.
James P. et al. (2019). Optimism and healthy aging in women. American journal of preventive medicine, 56 (1) : 116-124.
Kim E.S. et al. (2019). Optimism and healthy aging in women and men. American journal of epidemiology, 188 (6) : 1084-1091.
Koga H.K. et al. (2022). Optimism, lifestyle, and longevity in a racially diverse cohort of women. Journal of the american geriatrics society, 70 (10) : 2793-2804.
Kubzansky L.D. et al. (2015). Positive psychological functioning and the biology of health. Social and personality psychology compass, 9 (12) : 645-660.
Lee H.H. et al. (2022). Optimism and risk of mortality among african-americans : the Jackson heart study. Preventive medicine, 154 (106899) : 1-7.
Lee L.O. et al. (2019). Optimism is associated with exceptional longevity in 2 epidemiologic cohorts of men and women. Proceedings of the national academy of sciences of the united states of america, 116 (37) : 18357-18362.
Malouff J.M. et Schutte N.S. (2017). Can psychological interventions increase optimism ? A meta-analysis. The journal of positive psychology, 12 (6) : 594-604.
Mohammadi N. et al. (2020). The impact of an optimism training intervention on biological measures associated with cardiovascular health : data from a randomized controlled trial. Biopsychosocial science and medicine, 82 (7) : 634-640.
Oh J. et al. (2020). The association between actor/partner optimism and cognitive functioning among older couples. Journal of personality, 88 (4) : 822-832.
Okuzono S.S. et al. (2022). Optimism and longevity among japanese older adults. Journal of happiness studies, 23 (6) : 2581-2595.
Plomin R. et al. (1992). Optimism, pessimism and mental health : a twin/adoption analysis. Personality and individual differences, 13 (8) : 921-930.
Progovac A.M. et al. (2017). Optimism predicts sustained vigorous physical activity in postmenopausal women. Preventive medicine reports, 8 : 286-293.
Sachs B.C. et al. (2023). The relationship between optimism, MCI, and dementia among postmenopausal women. Aging and mental health, 27 (6) : 1208-1216.
Scheier M.F. et al. (1994). Distinguishing optimism from neuroticism (and trait anxiety, self-mastery, and self-esteem) : a reevaluation of the life orientation test. Journal of personality and social psychology, 67(6), 1063-1078.
Segerstrom S.C. et al. (2011). Optimism and pessimism dimensions in the life orientation test-revised : method and meaning. Journal of research in personality, 45 (1) : 126-129.
Segerstrom S.C. et Sephton S.E. (2010). Optimistic expectancies and cell-mediated immunity : the role of positive affect. Psychological science, 21 (3) : 448-455.
Stenlund S. et al. (2026). The bright side of life : optimism and risk of dementia. Journal of the american geriatrics society, in press : 1-9.
Steptoe A. et al. (2006). Dispositional optimism and health behaviour in community‐dwelling older people : associations with healthy ageing. British journal of health psychology, 11 (1) : 71-84.
Source image :
Stephan Müller – Verre à boire transparent rempli d’eau (2018). https://www.pexels.com/fr-fr/photo/verre-a-boire-transparent-rempli-d-eau-928854/
OpenEdition vous propose de citer ce billet de la manière suivante :
Christophe Rodo (25 juin 2026). Le préservant optimisme (épisode 358). Cerveau en argot. Consulté le 15 octobre 2026 à l’adresse https://doi.org/10.58079/16gso