The real issue being ignored in healthcare costs

The single most repeated fact during the national debate about healthcare is how expensive healthcare is in the U.S. Plus outcomes that fall below OECD benchmarks. The per capita spending in 2008 was $7538, 51% higher than the nearest high spender Norway. As a share of national expenses, our health bill is over 16% of GDP. Few get into the weeds and start to question why? The entire focus is on the share of hospital and physician part in the overall expenditures. 
Of the 2.6T$ spent on healthcare in 2010 over 50% is spent on lifestyle diseases! "Article". 
Behavior. Even moderate behavioral changes would drastically cut health care costs for type 2 Diabetes, Coronary Artery disease, stroke and colon cancer just to name a few. Addictions. Obesity. Childbirth in teens. The list goes on. It would make sense to compare outcomes for instance for infant mortality with other countries after accounting for childbirth in addicted single mothers with no prenatal care. 
The healthcare system cannot fix all of society’s ills. We should find innovative ways to reduce cost and improve outcomes in high risk populations. However, the problem is much bigger than that. It will take total buy-in from the public and some extreme measures to bring down the cost as well as the human suffering.