A healthy weight loss is a gradual process that does not happen overnight. This is a known fact. But what if this is taking forever? No matter what you do or try, the weight just does not come off.

If all that assorted media isn't enough, now you can attempt to recreate a bit of that night in your home with a $24 ...

NPR's Ailsa Chang talks with Emily Kwong and Regina Barber of Short Wave about the fluid dynamics of crowds, an early fossil of a modern bird and new data on how people's moods change through the day.