"excessive screen time" is correct and usable in written English.
You can use it to refer to the amount of time someone spends on devices with a screen, such as a computer or phone. For example, "The doctor suggested that Sarah reduce her excessive screen time to help improve her sleep."
Excessive screen time is associated with a higher risk of obesity.
"It is agreed that excessive screen time – over four hours with no break – can be a bad thing.
With no real battles to fight, excessive screen time can be devoted to tales of trivial consumption.
Excessive screen time has the potential of turning students into passive recipients as opposed to active learners.
But Davie argued individuals can still suffer from excessive screen time, and noted "there are other reasons beside mental health for children to need a good night's sleep".
The authors' sense that children are slipping from adult grasp, becoming a sort of lost generation, will resonate with parents, especially those battling with excessive screen time or teenage estrangements.
The outcomes of interest were the following obesity-related lifestyle behaviours of children: low level of physical activity, excessive screen-time and unhealthy dietary behaviours, based on parents' questionnaire responses.
Over half of all children in the sample were categorised as having unhealthy dietary behaviours (table 2), 64% had low levels of physical activity and 49% participated in excessive screen-time behaviour.
The proportions of children who participated in low levels of physical activity, excessive screen-time behaviour and had unhealthy dietary behaviours were assessed by ethnic group and deprivation quintile.
Excessive recreational screen time (i.e., screen use for entertainment) is a global public health issue associated with adverse mental and physical health outcomes.
Excessive exposure to screen time and the simplicity of changing websites work like a drug where immediate gratification is emphasized and distraction is the consequence.
