The Impact of Mobile Phone Use on Sleep Quality Among College Students: The Mediating Role of Heart Rate and Negative Emotions

To explore the relationship between using mobile phones before going to bed and heart rate, negative emotions and sleep quality among college students. A field research method combining "physiology + psychology" was used to select 20 subjects who used mobile phones for 60 minutes before going to bed. Polar bracelets and heart rate belts were used to collect heart rate signals in real time during mobile phone use and sleep in the dormitory, and the Pittsburgh Sleep Scale and Mood State Scale were used to evaluate sleep quality and mood changes before and after sleep. The results showed that the negative emotions caused by using mobile phones for more than 60 minutes before going to bed played a mediating role between heart rate and sleep quality, and the confidence interval of Boot95%CI was [0.071,1.337]. This shows that using mobile phones for more than 60 minutes before going to bed increases the excitability of sympathetic nerve activity and does not directly lead to sleep problems, but rather induces negative emotions.