Hi, I'm quite new to C25K as this is my first post. I have been running on a treadmill at the gym and have just completed week 4. What I was wondering was what pace people run at and does anybody else run on a treadmill? I was running at 8 km/hr but found it too difficult, I've since dropped down to 7.5 km/hr and I'm finding it much easier. It seems awfully slow but it's all I can manage. My problem is cardio, I gave up a 40+ a day smoking habit in January to take up running and find that it's my breathing that lets me down. I was wondering what pace other runners are managing and have they found their pace improving as they progress.