HOUSTON (KIAH) The Chevron Houston Marathon is this weekend and among those running is Nikki Cannon. For her 40th birthday Cannon decided to challenge herself and at the same time raise money for a worthy cause, the non-profit Soles4Souls. Cannon is running 40 for 40 in 40. 40 marathons, in 40 days, for her 40th birthday. 

Cannon joins Houston Happens host Maggie Flecknoe to share her story.