Sleep Polysomnography and Reported Stress Across 6 Weeks.

The article focuses on a study conducted on 46 subjects to investigate the impact of stress on sleep. It reveals that polysomnographic data of 33 individuals were collected whereas 13 did not completed the full protocol because of minor disease and work schedules. It mentions that all participants were given a self-administered questionnaire based on their social and demographic background such as smoking, alcohol consumption and physical activity.