Japan has one of the highest rates of life expectancy and one of the lowest birth rates. But does that mean that a widely circulated claim – that more nappies aimed at adults are sold in Japan than those made for babies – is true? With guests Sarah Parsons, Senior Teaching Fellow at SOAS in London and Dr Mireya Solis, Knight Chair in Japan Studies at the Brookings Institution.

Presenter: Charlotte McDonald
Reporter: Isobel Gough
Producers: Isobel Gough, Jon Bithrey
Sound Engineer: James Beard
Production Co-ordinator: Brenda Brown

(Japanese models wear the latest fashion style of adult diapers for senior health during its fashion show in Tokyo 2008. Credit: Yoshikazu Tsuno/Getty imges) Show less