Can Too Much Screen Time Dumb Down Your Kid?

Kids with the sharpest intellects spent less than two hours a day on their cellphones, tablets and computers, coupled with 9 to 11 hours of sleep and at least an hour of physical activity, according to a study based on data gathered from over 4,500 U.S. kids aged 8 to 11.

from WebMD Health https://ift.tt/2QZlJrw