Screen time and children’s mental health: what does the evidence say?


By: Victoria Zamperoni
July, 9, 2018

Some studies suggest screen time is harmful…

This includes the use of screens by children and young people, with one recent study finding that 99.9% of a large sample of English 15-year olds use at least one kind of digital technology every day.1 

As the presence of technology in the lives of children and young people has increased so, too, has interest in how these screen-based technologies impact on their health and wellbeing, and how best to manage and moderate their use. 

Several professional bodies have released recommendations for the use of screens and digital media by children and young people. The British Psychological Society recommends that parents and carers use technology alongside children and engage them in discussions about media use.2

The American Academy of Pediatrics recommend less than one to two hours of entertainment screen time per day for children and discourage the use of any screen media by children under two years of age.3

Many of the concerns around screen use relate to sedentary (or inactive) behaviour. The idea being that time spent in front a screen is time that is not spent exercising or doing other forms of physical activity. Sedentary behaviour may be associated with poorer physical health, wellbeing, and mental health4 and some research has connected screen use to increased sedentary behaviour in children.5

There are also concerns that the use of screens can impact children and young people’s sleep, something that is important to both physical and mental health and wellbeing. Indeed, there is evidence to suggest that the use of screens at bedtime is linked to children having fewer hours of sleep, poorer sleep quality, and increased tiredness.6,7

In terms of the relationship between screen use and physical and mental health outcomes, there have been several studies that suggest higher levels of screen use in children and adolescents is associated with reduced physical activity, increased risk of depression, and lower wellbeing.5, 8-10

Other studies suggest screentime causes no harm…

There are other studies that find no differences in wellbeing or mental health problems between children who meet recommended screen use guidelines, and those that exceed them.1,11-12 Some studies suggest there may actually be small, positive impacts of screen use on children and young people.1,11,13

This shifting relationship has been suggested by some researchers to be a result of screen use having a ‘U-shaped’ relationship to health and wellbeing, where using screens for low to moderate amounts of time can have neutral to positive effects but using screens for an excessive amount of time may begin to have negative effects.1,8,11,14

Some of the confusion around the effects of screen use in children may also be due to how quickly technology has developed. There are now many different types of screens (televisions, computers, tablets, mobile phones) which can be used in many different ways (watching films, playing games, reading books, using social media). This means when we talk about ‘screen use’ in children and young people, we can be talking about a huge range of activities, each of which may have a unique impact. 

Using screens for communicating and connecting with friends and loved ones may be beneficial for some children and young people. 

There is research to suggest that, while social media has risks in the form of enabling unhealthy comparisons to others, bullying, or exposure to negative content, it can also have positive influences. Children have reported feeling that it helps them to keep in touch with others, strengthen relationships with friends, and allows them to explore new information and perspectives.13,15

A review of the research around Facebook use found that ‘passive use’ (scrolling through posts without interacting with the content) was associated with lower wellbeing and life satisfaction, but ‘active use’, where Facebook was used to directly communicate with others, or create content, was not associated with these negative effects, and may actually have a slight positive impact on wellbeing and perceptions of social support over time.16 

This suggests that how children interact with media, as well as the type of media they use, and how long they use it for, may all influence mental health and wellbeing in slightly different ways. 

Screens can also be used to actively promote mental health in the form of computerised therapies. For example, computerised cognitive behavioural therapy (cCBT), has been found to be effective for children and young people aged 12-25 who are at risk of, or are experiencing, anxiety and depression.17


Comment: this article not only talks about the negative impact but also bring up some positive effect of technology use on child development. I think it is important for us to not only focus on the negative effect but also seeing the positive side of it.


  1. I agree that it is interesting that this article brings up positive sides to screen time. I wonder if this same mentality could be used when designing a solution of your own to address kids’ internet safety. Maybe there is a way to encourage online interaction in healthy ways and protect kids from dangerous situations.


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