I attempted C25K last autumn and gave up in November as I could not run for 5 minutes. I repeated (and repeated) week 3 until I could run 3 minutes comfortably but I was giving up on the 3 minute runs after 2 minutes . I Thought I would have another go and for some reason it's so much easier this time... I've done week 3 this week, was amazed when Laura said I'd finished yesterday and R1 I did and extra 2 runs before the warm down. I can't think what's changed as I still have over 4 stone to lose, I'm still 48 and I still have my medical conditions. I'm starting W4 this weekend and I know that I'll do it. Bring it on!