Paris speaks to a YouTuber who found herself going through therapy in her second language and a woman who lost her mother tongue after crossing the US border. Assistant professor and bilingual Sayuri Hayakawa explores how speaking a second language can affect how we think and behave. The Flipside is hosted by Paris Lees, and written by Hannah Varrall and Paris Lees. The Assistant Producer is Lucy Evans, The Production Manager is Emily Jarvis. Audio engineering is by Chris Carter and Nick Webb and it is mixed by Mau Loseto It’s produced by Hannah Varrall and the Executive Producer is Rubina Pabani It’s made by ITN Productions for BBC Radio 4