Association of Serum Cortisol and Testosterone Levels with Males Iraqi Smokers Al-Zuhairi Wafaa Sh., Hassan Ekhlas Abdallah, Abdulmajeed Alzahraa Ibrahim, Farhan Mohammed A. Department of chemistry, College of Science, University of Diyala, Baquba, Diyala, Iraq Online published on 27 November, 2019. Abstract Objective The goal of this research was to observe the effect of tobacco on cortisol, levels of testosterone in smokers, and whether cortisol correlated with testosterone levels. Also, if there is relationship between serum cortisol levels and the duration of smoking. Method This research has been carried out at the University of Diyala in Diyala Province, at the period from March 2018 to June 2018. The research included (63 man) cases with age range (17–67) years. The cases were classified in two groups, (53 man) smoker people and (10) Non-smoker people. Results The mean of serum cortisol levels were significantly higher in smoker than non-smoker. In addition, cortisol has high significant relationship with duration of smoking in smoker people (p=0.001). However, there was no significant difference in testosterone mean between smoker and non-smoker. Also, testosterone has negative but not significant correlation with age, BMI and cortisol. Conclusion In this study, smokers and nonsmokers had similar mean values of Age, body mass index (BMI). However, levels of cortisol were significantly higher in smoker than non-smoker. Also, it has high significant relationship with duration of smoking. On other hand, the level of testosterone has no significant difference between smoker and non-smoker. Also, it has negative correlation with age, BMI and cortisol. Top Keywords Cortisol, Testosterone, Smoking, Body Mass Index, Duration of Smoking. Top |