Young children are being overexposed to screens at an early age which could to health problems in later life, experts have warned.
Limiting the amount of time children spend in front of a screen could have significant advantages for their health and wellbeing, a leading psychologist has said.
By the age of seven, a child born today will have spent a full year glued to screens, according to Dr Aric Sigman.
The average 10-year-old has at least five screens readily available to them at home, and over the course of childhood youngsters spend more time watching TV than they do in school, he said.
The population's vast use of games consoles, tablet computers, televisions, smart phones and laptops has been linked to obesity problems and an increased risk of cardiovascular disease and Type 2 diabetes, he warned.
Writing in the Archives Of Disease In Childhood, Dr Sigman said such extensive use could also lead to attention problems and other psychological difficulties.
The amount of time spent in front of a screen could also adversely affect children's social relationships.
He said many parents use the devices as "electronic babysitters" as a means to occupy their children.
"Screen time appears to have created the three-parent family," he added.
He also said there are emerging concerns about the amount of time children spend watching 3D televisions and consoles - saying such devices could affect the development of the child's depth perception.
Dr Sigman - who is also a child health expert - has made a raft of suggestions for children's screen consumption including delaying the age children start using screens to at least three.
Children aged between three and seven should be limited to half-an-hour to an hour of screen time each day, he said.
Those aged seven to 12 should spend just one hour in front of screens.
Children aged 12 to 15 should have a maximum of 1.5 hours in front of screens and those aged 16 and over should spend just two hours, he recommends.