From addiction expert Dr. Nicholas Kardaras, a startling argument that technology has profoundly affected the brains of children--and not for the better.

We've all seen them: kids hypnotically staring at glowing screens in restaurants, in playgrounds and in friends' houses--and the numbers are growing. Like a virtual scourge, the illuminated glowing faces--the Glow Kids--are multiplying. But at what cost? Is this just a harmless indulgence or fad like some sort of digital hula-hoop? Some say that glowing screens might even be good for kids--a form of interactive educational...