Millions die from malnutrition each year. But it’s not always due to a lack of healthcare. In some communities, there’s a distrust of medical officials. So, how do you save lives when people won’t listen to a doctor? Well, you could turn to behavioural science. On today’s show with behavioural science experts from Ogilvy, Ella Jenkins and Mike Hughes, we share how to make healthy yoghurt more appealing, how to get millions of Indian children to wash their hands, and how to improve your memory.