All too often nowadays I see parents putting an ipad in front of their kids to keep them busy while they go handle something else (not judging, I would do the same). But yeah since the start of the Information Age (and accelerated by smartphones) there's been all sorts of discussions regarding the loss of concentration in adults, let alone kids with developing brains.

I still think it's a bit early to establish links, but South Korea should absolutely be at the forefront of these studies.