We’re all probably familiar with physical first aid, but there is also something called mental health first aid and a new Cochrane review was published in August 2023, looking at the evidence on its effects. In this podcast, Roses Parker, Cochrane's Commissioning Editor, talks with two co-authors, Rachel Richardson who leads the Methods Support Unit in Cochrane and George Wellby who works as a psychiatric registrar in London, UK, about the review.