cross-sectional study · n=2,126
Mobile phone use, sleep quality, and mental health in the general population
International Journal of Environmental Research and Public Health · 2018
Open PubMed recordDOI 10.3390/ijerph15030511tech
Keeping a phone nearby has no sleep cost
Grade C · LimitedHuman reviewed
What people say
“My phone can stay by the bed because I am not actively using it.”
What the evidence says
Grade C · LimitedCross-sectional studies associate nighttime phone use with poorer sleep, but they cannot separate the device from stress, habits, or existing sleep problems. Notifications are a practical variable to test locally.
Research record
What this verdict is based on
Sources are linked for inspection. Study results are summarized for general information, not personal medical direction.