This video is from 2012, and things have not got better since then. This is a US General describing the impact of deteriorating health among young people on the performance of the armed forces, and he also touches on the human and economic cost of this epidemic:
youtube.com/watch?v=sWN13pK...
His basic point is that while governments have undoubtedly made this worse with misguided policies, they now cannot or will not fix it. It's up to every individual to sort out their own lives and the lives of their children. It's only the usual TED-talk 15 minutes, so well worth watching.