Self-compassionate young adults show lower salivary alpha-amylase responses to repeated psychosocial stress

In this study, we tested the hypothesis that participants higher in dispositional self-compassion would show lower stress-induced reactivity of salivary alpha-amylase (sAA), a marker of sympathetic nervous system activation. Thirty-three healthy participants (18-34 years old) were exposed to a standardized laboratory stressor on two consecutive days. Self-compassion, self-esteem, and demographic factors were assessed by questionnaire, and sAA was assessed at baseline and at 1, 10, 30, and 60min following each stressor. Self-compassion was a significant negative predictor of sAA responses on both days. This relationship remained significant when controlling for self-esteem, subjective distress, age, gender, ethnicity, and body mass index. These results suggest that self-compassion may serve as a protective factor against stress-induced physiological changes that have implications for health.