Thank you to all our runners and supporters in the London Marathon 2010. From Rachel and everyone at Heart Research UK

2. Congratulations to all our London Marathon runners

4. And a big thank you to our London Marathon runners and their generous supporters

17. Heart Facts The distance that blood travels around your body is the equivalent of flying from UK - Hong Kong and back every day

18. Heart Facts Over 50 years, the heart expends enough energy to lift a battleship out of the water

19. Heart Facts Octopuses have three hearts

20. Heart Facts Humpback whale’s heart weighs same as 3 human adults (195kg)

21. Congratulations to all our London Marathon runners

23. And a big thank you to our London Marathon runners and their generous supporters