J. (2018, March 02). Screen Time Syndrome: Brain Images Explain Why Kids Are Moody, Impulsive & Cant Pay Attention. Retrieved March 02, 2018

Tablets are the ultimate shortcut tools: Unlike a mother reading a story to a child, for example, a smartphone-told story spoon-feeds images, words, and pictures all at once to a young reader. Rather than having to take the time to process a mother’s voice into words, visualize complete pictures and exert the mental effort to follow a story line, kids who follow stories on their smartphones get lazy. The device does the thinking for them, and as a result, their own cognitive muscles remain weak.