What's wrong with our kids?

The CDC says that an increasing number (up to 20%) of our childen have mental disorders:

http://www.wsws.org/en/articles/2013/05/25/ment-m25.html

Is that because of TV, the Internet, video games, poverty, poor nutrition, cultural upheaval, or all of the above?

Or is the CDC full of crap?

Whatever the case, this does not bode well for our future as a nation.