L'adversité et la santé des enfants : Une étude prospective et longitudinale de l'effet du timing d'exposition au stress sur la trajectoire de développement de cortisol diurne


Leah Wright

Université Concordia


Domaine : Santé de la mère, des enfants et des adolescents

Programme : Formation de doctorat

Concours 2016-2017


Fondation des Étoiles

Stress during childhood has been associated with many health problems during later childhood and adulthood. One way of measuring stress is by examining changes in cortisol. Cortisol is widely known as the "stress hormone." By measuring cortisol, researchers attempt to infer how children are responding to the stress in their lives. Laboratory based studies of stress have consistently demonstrated that children experience a heightened cortisol response when undergoing a stress task.

However, when attempting to study stress in the real world, the results have been mixed. One reason for the mixed results may be the timing of stress exposure during childhood. This study will examine stress at different stages of childhood in a sample of 634 children in Quebec. The children were measured at three different ages over 6 years. At each time, cortisol and stress were measured. We expect to find differences in cortisol levels in children who experience stress before puberty, during puberty, and after puberty.