Kids need to get enough sleep and exercise. But all in all, the authors concluded that since so few kids met all three measures (and some didn't meet a single one) improving adherence to any of these guidelines could potentially improve physical health and cognitive performance. The measures that had the strongest links to cognitive scores were screen time and sleep, though Walsh said a more accurate way of looking of exercise might reveal definitive links on that measure as well. A dismal 18% of the kids got enough physical activity. Only 37% limited recreational screen time to two hours a day, and kids averaged more than three-and-a-half hours per day of recreational screen time, which includes TV, mobile device use, and video games. Kids did best on the sleep measures - about half got nine to 11 hours a night. The cognitive tests they took measured language abilities, episodic memory, executive function, attention, working memory and processing speed. Kids and parents completed questionnaires to measure sleep time, screen time, and physical activity.
It often indicates a user profile.įor this research, the team looked at data from 4,520 children aged 8 to 11 from 20 locations across the US. Account icon An icon in the shape of a person's head and shoulders.
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