eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2017-12-25 14 4 1457 1464 10.13005/bbra/2591 28728 article Hossein Aghaei 1 Maryam Rahnamay 2 Clinical Psychology, Faculty of Humanities, Buinzahra Branch, Islamic Azad University, Tehran, Iran. Faculty Member of Psychology Department, Buinzahra University, Ghazvin, Iran. The purpose of this study was to determine the effectiveness of mindfulness training on reducing stress, thinking control and work memory of military staff. This quasi-experimental study was conducted with pre-test, post-test and control group. The statistical population of this research was all military personnel. Using available sampling, 60 people were selected as the sample volume and they randomly placed in two control and test groups of 30 people. Intervention of Mindfulness-Based Stress Reduction (MBSR) on test group was performed in 8 sessions for two months and after intervention, a post-test was performed again. The data gathering tool was DASS-21 questionnaire. After collecting data through a questionnaire, SPSS software version 22 was used to analyze the statistical data. The results of covariance analysis indicated that there is a significant difference between the average scores of the post test of the test and control groups, and teaching mindfulness has been effective in reducing stress, thinking control and work memory of military personnel. This means that reduction of mind-fullness-based stress has been able to influence the reduction of stress, thought control, and work memory by creating a more positive attitude towards their abilities, creating a proper attention environment and self-control. https://www.biotech-asia.org/vol14no4/the-effectiveness-of-teaching-mindfulness-on-reduction-of-stress-thinking-control-and-working-memory-of-military-personnel/ Mindfulness Training; Stress; Thought Control; Work Memory