Teenagers who own smartphones spend more time online – also during the night, which may affect their sleep. A new University of Basel study on more than 300 students reports that teenagers' digital media use during the night is associated with an increased risk of sleep problems and depressive symptoms. The findings have been published in the Journal of Youth and Adolescence.
While introduced only around 2007, most teenagers nowadays own smartphones. Due to wireless internet connections and cheap flat rates, teenagers with smartphones spend more time online and communicate with their peers for less money – for example via WhatsApp – which has changed their digital media use pattern profoundly.
A study by the University of Basel examined differences in digital media use between teenagers with smartphones and their peers with conventional mobile phones. 162 female and 200 male students from Northwestern Switzerland aged 12 to 17 participated in the study.
The results show that during weekdays teenagers with smartphones spent more time on the internet than their peers with conventional mobile phones; on average two hours compared to one hour. In addition, they wrote more text messages daily; on average 85 messages compared to seven messages.
Sleep disorders and depressive symptoms
A particularly noticeable difference was found for the time when the teenagers were in their beds at night: Only 17% of smartphone owners switched their devices off or put them on silent during the night compared to 47% of the teenagers with conventional mobile phones.
Moreover, teenagers with smartphones indicated to watch videos, to be online, and to text with friends more often during the night than their counterparts with conventional mobile phones. Most importantly, teenagers who used digital media at night had an increased risk for poor sleep and depressive symptoms. Experts thus recommend that teenagers who suffer from sleep disorders or severe daytime tiredness to switch their digital media devices off at least one hour before bedtime.
Lemola, S., Perkinson-Gloor, N., Brand, S., Dewald-Kaufmann, J., & Grob, A. (2015). Adolescents' electronic media use at night, sleep disturbance, and depressive symptoms in the smartphone age.
Journal of Youth and Adolescence, 44, 405–418. DOI: 10.1007/s10964-014-0176-x
Prof. Dr. Sakari Lemola, University of Basel, Department of Psychology, Missionsstrasse 62, 4055 Basel, Tel. +41/61 267 06 38, Email: firstname.lastname@example.org
Olivia Poisson | Universität Basel
Diagnoses: When Are Several Opinions Better Than One?
19.07.2016 | Max-Planck-Institut für Bildungsforschung
High in calories and low in nutrients when adolescents share pictures of food online
07.04.2016 | University of Gothenburg
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences