Many parents used to drink while pregnant and put whiskey in the baby bottle to make kid shut up. We should make decisions based on research, not by emulating other badly informed parents, even if they are the majority.
The study does not point to a cause. The comment I'm responding to is drawing conclusions based on a sensationalist blog post and then wishing they could report other parents for abuse. I think the study is well done, but we can't scientifically draw the conclusions from it that the author (and folks in this thread) are drawing.
This is just one study, that echos dozens and dozens of other studies all pointing at the same things: being reachable and able to reach everything and everyone everywhere all at once is making us all sadder and less productive, and kids are getting the worst of it having been handed this tech from their parents shortly after birth.
