Claudia meets Professor Elizabeth Stokoe author of 'Crisis Talks' whose research shows when preventing a suicide, that words really do matter and can save lives during a crisis. Through analysing real time recordings of actual conversations between people in crisis and police negotiators, new findings highlight what can work and what doesn't. And are you good with faces? Dr James Dunn from the University of New South Wales explains his new research on the top 2% who are so called 'super recognisers'. Plus Science writer David Robson reports on the big neuroscience conference from San Diego with news of sleeping spiders and seeing faces in clouds.

Presenter: Claudia Hammond Producer: Erika Wright