The Bomb That Didn't Explode

We know that we live in an ever-changing world, but one thing we often overlook is demographic change. Whether the world's population is growing or shrinking can affect many aspects of our lives, from the number of kids we have to the likelihood that we'll live to old age. This week on <em>Hidden Brain, </em>we explore how our planet's population is changing, and what that means for us in the century to come.