"We are creatures with faces. We face things. We're good at it. And when we can't, we panic. We always panic when we can't do what we're good at, which is why office workers, who are naturally good at running down wounded kudu, are stressed to hell, fearful and overmedicated."
Below a graph from the OECD published in the Economist in 2013 in an article titled 'Get a Life' showing the negative correlation between GDP per hour against hours worked.