I'm running 2 (!) marathons within a few weeks to support London's Air Ambulance. I have personal experience of the importance of the London's Air Ambulance after they played a key part in treating me following an accident 8 years ago. That's why I'm taking on an extra challenge this year in trying to run 2 marathons in a month (the London marathon and the Chelmsford marathon) to raise money for this amazing cause. All donations massively appreciated!