Good news, but I find the title somewhat misleading when all the article does is trying to minimize the increase in adult death rates in the US (comparing to children). Also less deaths doesn't necessarily mean healthier..
http://blogs.wsj.com/economics/2016/06/07/behind-the-ongoing...
Especially in youth where accidents are the leading cause of death.
Better use of helmets, seat belts, and life jackets could be the cause of reduced mortality, even while health declines.
For older children and teenagers it's probably better safety equipment, particularly in cars. I guess we've also got improved treatments now for the few diseases which actually do kill children, such as various cancers.
But hey, it's still good news, even if "healthier" isn't the way to describe it.