I have just run week 5 run 3 - that's the 20 mins non-stop for anyone who hasn't come across it yet! I had to wait until late this evening because of the heat but now I've done it! I started to struggle at around 11 -13 minutes but I seemed to catch a second wind at maybe 16 or 17 mins and finished it feeling I could do a bit more. I was really worried about it but I did two things which I think helped - I slowed right down, especially when I was struggling, although I was still running obviously. I also just thought of it in groups of 5. So, for example, around 7 mins in I'd be thinking something like "2 minutes in, only about 3 to go" and then I'd start again at the beginning if 5 minutes when it was actually 10 or 15 mins in. I also tried to admire the scenery instead of thinking about how exhausted I was (it was tiring, don't get me wrong!). Can't believe I managed to do it though! I still remember struggling to run for 60 seconds!