I'm a bit dejected tonight people. I took advantage of a freebie blood lactate sample today with a view to aiding my London marathon training. Well the long and the short of it was that I was old that if I try to run a sub 4h marathon they'll have to shovel me off the road! Came as a bit of a shock really. I know that I'm not ready now, but London is 12 weeks away. I'm getting my miles in five days a week, do a 10k in 46min and a half in 1h45. Is a sub 4h really that over ambitious? I'm a great believer in science, but I honestly think that I'm capable.