The goal of this clinical trial is to learn if mindfulness-based writing expression training works to improve stress and cognitive flexibility among military personnel. The main questions it aims to answer are:
* Does the mindfulness-based writing expression training lower the scores of the perceived stress scale and of the cognitive flexibility inventory?
* Researchers will compare the mindfulness-based writing expression training to the regular mental health education to see if the mindfulness-based writing expression training works to relieve stress and enhance cognitive flexibility among military personnel.
Participants will:
The intervention group received five sessions of mindfulness-based expressive writing training.
The control group carried out activities according to the daily mental health education training without any additional intervention.
All participants completed assessments of cognitive flexibility and perceived stress using the Cognitive Flexibility Questionnaire and the Perceived Stress Scale, administered both prior to and following the randomized controlled trial.