If you're looking for a policy solution you're talking about a different mix of individual behaviors of lots of citizens in very different climates all over the country. (dotearth.blogs.nytimes.com)
Their strategy focuses on optimizing the health environment instead of individual behavior change. (truehealthinitiative.org)
They also must be willing to make changes in individual behavior in order to reduce the friction and difficulties that have brought stress to the marriage. (wisegeek.com)