LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge meets Heads Together runners in the Blue Start area as they prepare for the 2017 Virgin Money London Marathon on April 23, 2017 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge meets Heads Together runners in the Blue Start area as they prepare for the 2017 Virgin Money London Marathon on April 23, 2017 in London, England. (Photo by Karwai Tang/WireImage)