By Paul Schreier You might feel like a hero for battling through a cold, but there’s a hidden cost for your work and the economy writes Paul Schreier Productivity in the workplace is a top priority for employers – not to mention the wider economy for the growth it enables. And yet when we wake up feeling awful and contemplate calling in sick, so often we don’t. Even if we know we’re going to struggle at work. Last week, stark new figures from the Institute for Public Policy Research (IPPR) found that the hidden cost of sickness to the economy has risen by £30bn since 2018. The vast majority of…