What Can Scientists Learn about Work from the People Who Do it?

In Europe, Asia and Latin America supermarket checkout clerks work sitting down. In North America, they stand all day and have leg and back problems? Why? Award-winning and internationally recognized occupational health expert Karen Messing tells the story of how she went from looking at test tubes to listening to workers, drawing on her recent book Pain and Prejudice: What Scientists Can Learn about Work from the People Who Do It