Researchers studying more than 45,000 university students have found that using any kind of screen after going to bed — whether it’s for social media, gaming, or even listening to podcasts — significantly raises the risk of insomnia. Just one additional hour of screen time in bed increases that risk by 59% and shortens sleep by nearly half an hour.

Insomnia is defined as trouble sleeping and daytime sleepiness at least three times a week over at least three months. While the study did not determine causality — for example whether screen use causes insomnia or if students with insomnia use screens more — researchers found that using a screen in bed at night makes it much more likely you will sleep less and sleep poorly.

A recent study has shown that using screens before bedtime can raise your chances of developing insomnia by 59%. The study highlights the impact of screen time on your sleep quality and how it can disrupt your ability to fall asleep.