© Licensed to London News Pictures. 15/10/2018. London, UK. Mayor of London Sadiq Khan (right) and British athlete Sir Mohamed Farah (left) launch a campaign at Cubitt Town Junior School to encourage London schools to take part in the Daily Mile initiative. The Daily Mile gets school children exercising outside for 15 minutes a day, to improve their physical, social, emotional and mental health and wellbeing. Photo credit : Tom Nicholson/LNP