Smoking levels have leveled off...but rates among poor, southerners, and less educated still high!

This is a report on the most recent data on smoking levels in the U.S. Notice that smoking amoung Southerners is still high and the rates are higher among young people and those with only a high school education. Is there a connection between self-control, addictive behaviors, and low levels of life success? How is the brain connected to all of this?