Ever wondered how it is your optimistic friend always seems to be unfazed by stress? Scientists may have pinpointed a possible reason for why.
Researchers from Concordia University found that optimists' stress hormone levels remain more stable in the face of stressful moments compared with pessimists.
"On days where they experience higher than average stress, that's when we see that the pessimists' stress response is much elevated, and they have trouble bringing their cortisol levels back down," study researcher Joelle Jobin, who is a Ph.D. candidate in clinical psychology at the university, said in a statement. "Optimists, by contrast, were protected in these circumstances."