With tens of millions of COVID-19 cases worldwide and more than a million dead from the disease, global healthcare has assumed unprecedented importance today. What lessons have already been learned, and what needs to be done moving forward?

A century ago, the British novelist E.M. Forster distilled his vision of a moral life into two simple words he used as the epigraph for his masterful novel Howards End: “Only connect.”

Magnetic resonance imaging (MRI) has been part of routine medical practice for years. The big tubes produce fascinating images. No wonder that MRI is seen as the crowning glory of diagnostics. But how exactly does it work? What’s so special about it? We answer twelve questions to give a better idea.