How do you talk to your child about social media and mental health.

Ian Russell, whose daughter Molly took her own life, spoke to Today about talking to children about their social media use. Today's Amol Rajan picks up that question with Dr. Susanna Davies, a general practitioner and the founder of the nonprofit organisation PAPAYA (Parents Against Phone Addiction in Young Adolescents), as well as Lucy Alexander, the mother of Felix, whose 17-year-old son took his own life in April 2016. (IMAGE CREDIT: Press Association / Dominic Lipinski)