I used to when I was younger, but as I've got older I've not had time to exercise as much so I'm quite unfit at the moment. I'm not overweight or anything like that but I have asthma so being unfit, and having asthma makes it even more difficult to get back into shape. I've been so busy working this year, but that's coming to a close now so I'll have some free time and I plan to get back in shape and run the London Marathon this year