When looking at people who come from advantage backgrounds with high self-control, we see a different phenomenon happening. Those who come from an advantaged background tend to be high-achieving and with their achievement comes good health. The psychological phenomenon known as “John Henryism” posits that when goal-oriented, success-minded people strive ceaselessly in the absence of adequate support and resources, they can—like the mighty 19th-century folk legend who fell dead of an aneurysm after besting a steam-powered drill in a railroad-spike-driving competition—work themselves to death. Or, at least, toward it. In the 1980s Sherman James a socio-epidemiologist from North Carolina found that black Americans in the state suffered disproportionately from heart disease and strokes. He too landed on "John Henryism" as the cause of this phenomenon.