Experts have told us to keep "social distance." But what does that mean? Is dog walking OK? Can I have dinner with a friend at their apartment? And how does social distancing work? There are a lot of questions about the most responsible way to behave right now. We've got answers to some of those questions, and on the questions we can't answer, some clarity on why that is.

On Today's Show:James Hamblin, doctor of preventive medicine, staff writer at The Atlantic and the co-host of The Atlantic's new podcast "Social Distance," lecturer at Yale School of Public Health and the author of the forthcoming book Clean: The New Science of Skin and the Beauty of Doing Less (Riverhead Books, 2020), talks about how and why to practice social distancing, what to do if you start feeling sick and more as the COVID-19 pandemic upends life around the world.