The primary purpose of the present study is to investigate the relationship between
mindfulness and stress habituation. The investigators propose to measure the effect of
mindfulness on stress habituation by randomly assigning participants to a 6-week
mindfulness-based stress reduction group intervention, a cognitive-behavioral skills group
comparison intervention, or a waitlist control condition followed by repeated acute
psychosocial stress testing (2 laboratory sessions on 2 separate days). Saliva will be
collected from participants throughout both laboratory testing sessions to measure HPA axis
activation (an essential stress-responsive system), along with other measures of
physiological and psychological stress (e.g., heart rate, blood pressure, emotions).
Mediators and moderators of treatment outcome will be examined. The cognitive-behavioral
skills group condition is an appropriate comparison group due to the well-documented efficacy
of cognitive-behavioral interventions on stress.