eng Science and Education Publishing American Journal of Applied Psychology 2333-4738 2022-10-24 10 1 13 19 10.12691/ajap-10-1-3 AJAP20221013 article Thomas M?sler 1 Sandra Poppek 1 Christoph Leonhard cleonhard@thechicagoschool.edu 1 2 Wilfried Collet 2 Institut f¨šr Verhaltenstherapie, Verhaltensmedizin und Sexuologie, Nuremberg/Fuerth, Germany Meditations on death and dying that raise mortality salience (MS) are occasionally used during mindfulness-based Self-Practice/Self-Reflection with Cognitive-Behavior Therapy (CBT) trainees. However, Terror Management Theory studies suggest this may have adverse impacts. This study reports on the effect of a MS exercise on physical and psychological well-being in N = 211 CBT trainees. Findings show physical well-being was unaffected, but mental well-being was temporarily reduced in vulnerable participants. Adverse impact of MS exercises may be reduced if trainees have solid mindfulness skills. MS exercises may be justified if they can be shown to benefit therapistsĄ¯ professional competency or personal resilience. http://pubs.sciepub.com/ajap/10/1/3/ajap-10-1-3.pdf self-practice/self-reflection mortality salience terror management theory mindfulness therapist training