We are searching data for your request:
Upon completion, a link will appear to access the found materials.
How does the use of smartphones and televisions affect children's cognition?
Researchers have now found that children should spend less than two hours a day in front of the TV, tablet, smartphone or game console to promote their memory, attention, processing speed and language. In addition, it is very important that children get enough sleep and physical activity.
In their current investigation, the scientists at the Children's Hospital of Eastern Ontario Research Institute found that children should spend a maximum of two hours a day in front of the screen. This coupled with enough sleep and physical activity leads to improved cognition. The doctors published the results of their study in the English-language journal "The Lancet Child & Adolescent Health".
Experts analyzed the data from around 4,500 children
The study included approximately 4,500 children aged eight to eleven and examined their daily habits compared to recommended guidelines for children and adolescents. It turned out that 51 percent of the children received the recommended nine to eleven hours of continuous sleep per night, 37 percent spent less than two hours a day in front of the screen, and 18 percent met the recommended physical activity requirements of at least 60 minutes on Day. However, only five percent of the children in the study met all three recommendations. 30 percent of the children did not meet any of the requirements at all, the doctors say.
What were the average results of the subjects?
On average, participants slept 9.1 hours a night and spent a total of 3.6 hours in front of the television, laptop or smartphone. The children achieved the physical activity goal on average 3.7 days a week. The researchers found that children who followed each of the recommendations had positive effects on their cognition. These included memory, attention, processing speed and language. When children met all of the three recommendations, the best results followed, followed by the children who followed the recommendations for sleep and screen time.
The combination of factors has so far been disregarded
It is known that physical activity, sleep and screen time can each individually influence a child's cognitive health, say the doctors. However, these behaviors were never considered in combination, explains study author Dr. Jeremy Walsh from Children's Hospital of Eastern Ontario Research Institute. The 30 percent of children who did not follow any of the recommendations could benefit most from an adjustment in daily behavior. They do not currently have any positive effects on cognitive skills, explains the expert.
Should there be clearer guidelines for parents?
Some researchers demand that there should be clear guidelines that regulate how much time children spend in front of the screen, encourage physical activity, and determine areas in the home that are free of technology, such as the child's bedroom. The recommended screen duration depends on the age of the child. (as)