![The Economist: Babbage show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/980/small/the-economist-babbage.jpg)
Summary: Host Jason Palmer asks Natasha Loder if scientists are getting ever closer to the fountain of youth in pill form. Richard Wrangham explains why men are more touchy-feely than women after competitive sport. And Matt Kaplan examines how one sea creature's means of self-repair could help humans with damaged hearing