Mahvash Khan, Ayyaz Ahmed, Umar Ali Khan.
Effect of Endogenous Sex Steroids on Sleep Habits in Male Medical Students.
J Rawal Med Coll Jan ;19(1):89-92.

Background: To study the relationship of age and sleep habits with total testosterone levels in younger age group. Methods: This randomized cross sectional study was conducted on 66 male medical students. Anthropometric characteristics were measured and a standardized questionnaire proforma was completed regarding sleep habits. Serum total testosterone level was analyzed by Enzyme Linked Fluorescent Assay technique. Data was analyzed using student‘t` test and Pearson bivariate correlation. Results: Total testosterone was positively associated with age (r=0.102, p=0.018) and total sleep duration (r=0.753, p=0.000). Total sleep duration showed a positive association with age (r=0.270, p=0.000).Academic performance showed a positive relation with sleep duration (r=0.623, p=0.000) and sleeping time (r=0.188, p=0.000). Conclusion: Low concentration of total testosterone was associated with less healthy sleep. Total sleep duration and timing of sleep were related with academic performance.

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