Findings suggest that increasing inhibition as an adaptation to the stresses of adolescence, and particularly its impact on popularity, is a risk factor for increases in depressive symptoms. (link.springer.com)
Co-rumination, defined as an excessive discussing of personal problems (Rose 2002; Rose et al. 2007), has been described as a dyadic phenomenon which specifically involves members of close relationships, and it has been found to predict increases in depressive symptoms over time, especially for female adolescents (Hankin et al. 2010; Rose et al. 2007). (link.springer.com)
Considering these processes among adolescents was critical given that many youth experience increases in depressive symptoms at this developmental stage and that co-rumination also becomes more common at adolescence. (link.springer.com)