psychologists who followed 1000 people in New Zealand for decades discovered that those with the least self-control as young children grew up to exert a significantly greater burden on society as adults, with higher rates of unemployment, poor health and criminality.

 psychologists who followed 1000 people in New Zealand for decades discovered that those with the least self-control as young children grew up to exert a significantly greater burden on society as adults, with higher rates of unemployment, poor health and criminality.