Introduction: Quality of life is a multidimensional concept, including physical, material and social well-being and development and activity. It is the subjective perception of general satisfaction that is related to physical, mental and social factors. It allows the realization of the potentialities of the individual in his daily life. Coverage can be categorized into five dimensions: physical well-being, material well-being, social well-being, emotional well-being, and development and activity. Objective: Evaluate the quality of life and morale in military health staff  through the digital application of the Morale Survey and the Q-LES-Q instruments. Material and methods: Observational, transversal and descriptive study. The Questionnaire on Quality of Life: Satisfaction and Pleasure (Q-LES-Q) and Morale Survey were applied to military personnel working in the Military Central Hospital (N= 2519), with a representative sample of the population of n= 1517 for the Q-LES-Q questionnaire and n=1002 for the Morale Survey. Descriptive and inferential statistics were used to evaluate both questionnaires. Results: Of the 1517 individuals only 34% (510) fully answered the Q-LES-Q questionnaire, and of the 1002 individuals in the Moral Survey only 93% (929) fully answered the survey; results showed a tendency of experiencing a good quality of life and a high morale. Conclusions: The Morale Survey is a reliable method (Cronbach’s Alpha coefficient of 0.83) of quality of life and is more likely to be answered completely for evaluation.

The aim of the present article was to assess PTSD in military health staff, considering the characteristics of this type of environment, and specifically during the pandemic for COVID-19. The Davidson Trauma scale was presented through the survey monkey ® platform, digital consent was provided by the personnel, users solved the instrument on their own personal devices. Results showed an incidence of PTSD of 0.9% in a sample of 1422 subjects who  work in the Central Military Hospital; the most frequent symptom, and the most serious were the avoidance of doing things or being in situations that reminded the event, regardless of gender or age. We found a more risk of PTSD in females than in males (Odds ratio (OD) = 6.4; 95% confidence interval (CI) = 0.83 to 49.66). However, we did not find a correlation between age, hierarchy or professional group and the risk of PTSD.

Background Brain Derived Neurotrophic Factor (BDNF) serum levels change with age, physical exercise, and neuropsychiatric disorders such as dementia, depression, anxiety, schizophrenia, and bipolar disorder. Military personnel are physically and mental training with an increased risk of developing mental disorders. Objective The main objective of this study was determinate the BDNF serum levels in four military samples. 132 participants, administrative personnel (control) and three different Special Operations Forces (SOF) groups participated in the study. Methods A first group of SOFS was on a training course (SOF-TC), second group exposed to 48 hours of operational stress (SOF-48hS) and third group exposed to two-weeks of operational stress (SOF-2wS). The mini interview was conducted and CAPS, and BNF levels were determined by ELISA assays. Results Differences in age, were evaluated by ANOVA post-hoc Tukey´s. Differences in BNDF levels are evaluated by the Kruskal-Wallis test post hoc Dunn’s. Spearman's correlation was used to analyze the relationship between BDNF and age. The SOF-TC had a BDNF elevation in comparison with Control group that could be related to age differences or the physical and mental training.SOF-2wS had decreased BDNF levels in comparison to the other groups that could be related to the psychosocial stress or other mental disorders such as PTSD. That group, 2 participants showed signs of PTSD. Conclusion BDNF levels are an accurate method for the evaluation of mental health to prevent, diagnose & treat mental disorders in military personnel exposed to operational stress.