Do 85% of the world’s population practice a religion?

We don’t usually do god on More or Less, but one listener got in touch to ask us to investigate a stat used by an Anglican priest on a BBC radio programme.

Speaking on the “Thought for the Day” slot, Reverend Lucy Winkett said that around 85% of the world's population practice a religion.

Is this true? We speak to Conrad Hackett, from the Pew Research Center, and the person whose research is the source for the claim.

Presenter: Tim Harford Producer: Natasha Fernandes Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Nigel Appleton Editor: Richard Vadon