Item — HN Reader

There is a very convincing one where they compare health outcomes of bus drivers, who sit all day, and conductors.

London transport workers study -- coronary heart disease and physical activity of work: http://www.epi.umn.edu/cvdepi/study-synopsis/london-transpor...

1 comments

Devil's advocate: Wouldn't a person who prefers sitting be more likely to keep a job as a driver rather than conductor?

An unhealthy person might think, "Ugh, I'd have to be on my feet all day." And a healthy person may not see that as a major negative.

Not everyone can be so choosey about the job they get

But some can, and maybe it's enough to impact the study. Or maybe not.