Every hour more than time in front of the screen is connected to a 63% increase in the risk of insomnia and 24 minutes of sleep less. The study that notes that the time spent with a smartphone in bed causes a worst sleep
Blue light can be harmful, of course, as well as the constant and obsessive interactive activities on socialbut the thing that hurts most of all if you bring your smartphone between the sheets is sleep you don’t do. Simple and linear: “What affects is not what we do, but the time we spend watching the screen“.
To say it is a new study published on Frontiers in Psychiatryaccording to which to use the smartphone or tablet in bed significantly reduces the quality and quantity of sleep.
Sleep disorders are widespread among students and have large implications for mental health, academic performance and general well -being, says Gunhild Johnsen Hjetland, coordinator of the study.
The study
The investigation was conducted on over 45,200 Norwegian young people between 18 and 28. Scholars first asked them if they used smartphones or tablets after going to bed and for how long. The participants then had to tell the types of activities they carried out – watch a movie or a series, play, be on social media, surf the internet, listen to podcasts or audio or read study materials -, report the time they went to bed and the one in which they got up, how long they took to fall asleep and if they were sleepy during the day. Having collected the answers, the scholars divided the participants into three categories: who was only on social networks, those who were not there at all and who carried out various activities.
From the results it emerged that be exposed to the smartphone and tablet screen for an hour before turning off the light increases by 59% the risk of suffering from insomnia and reduces the duration of sleep by 24 minutes Confirming the simple assumption that the time spent with eyes on the screen – regardless of what is done – that makes us sleep badly, because it postpones the moment of falling asleep.
The ideal would be to stop watching smartphones and tablets at least 30-60 minutes before sleeping, and in any case disable notifications at night, concludes Hjetland.
