Recent research from the Norwegian Institute of Public Health highlights a concerning link between screen use and sleep quality, particularly among university students. The study found that spending just one hour on a device in bed after bedtime raises the risk of developing insomnia by an astonishing 59%.
The investigation involved a survey of approximately 45,000 Norwegian students aged 18 to 28. It revealed that although the type of activity—such as browsing social media or watching videos—was considered, it was the duration of screen time that had the most detrimental effect on sleep. Dr Gunnhild Johnsen Hjetland, the lead author, noted that regardless of the specific activity, prolonged screen usage in bed was more harmful than previously thought. Those who used their phones in bed not only tended to have reduced sleep but also reported poorer sleep quality overall.
This extended screen time was found to displace necessary rest, with the study suggesting that an hour of phone use could potentially decrease sleep time by up to 24 minutes. Additionally, the research pointed out that the effects of screen use may differ across various activities, but the overarching impact remains clear—excessive time spent on devices will likely keep individuals awake longer.
While this study primarily focused on Norwegian students, it is essential to consider that sleep patterns and screen habits may vary significantly worldwide. Dr Hjetland advises anyone struggling with sleep issues to cease screen usage in bed at least 30 to 60 minutes before trying to sleep. This can help mitigate the adverse effects of screen exposure. She also recommends disabling notifications to limit disturbances during the night.
In summary, the findings reinforce the importance of managing screen time, particularly before bed, to promote better sleep health. Reducing screen usage aligns with achieving a more restful night, helping young adults preserve their sleep quality and overall well-being.