Medical scientist Dr Zeynep Öztürk answers questions on a range of conditions and diseases.

Legal expert Dr Laura Hannan explores all things marriage, civil partnerships and divorce. Laura is a PhD graduate from the University of Cambridge and also holds a Masters from Harvard University.

Join Psychologist Graham as he explores personality and behavioural topics. Graham is a researcher and PhD student at the University of Oxford.

Dr Harry Spillane and Dr Saul Yardley explore people, events and important periods in history. Harry is a Professor of History at the University of Cambridge; Saul is a historian and Cambridge postdoctoral graduate.

Economist Mikkel Weimann answers your questions on trade and macro economics. Mikkel is a PhD candidate at the University of Cambridge.