One hour a day on social media can derail your sleeping pattern, a new study warns.
The report by Canadian researchers was commissioned to assess why so many young people struggle to sleep eight hours.
They found the root problem to be social media: those who spent at least 60 minutes on WhatsApp, Facebook or Snapchat suffered more sleep issues than those who did not. The more time they used the apps and sites, the less sleep they got.
The study found teenage girls were the most addicted to social media and were therefore more likely to be sleep deprived, but it affects boys just the same.
Canadian researchers said the findings were important as social media has grown rapidly, children and teenagers are more likely to use the new technology and develop and consolidate bad habits which they carry on as adults.
Previous studies found poor sleep has been linked to poor academic performance, and those most likely to be sleep deprived were older teens, boys, those who did less exercise or had poor mental health.