This is one of my little things but something that makes a BIG difference.
It was I think w5 with the 10 minute runs and on the 2nd run I had to walk for maybe 15 seconds, that night I came on here and read a post from a member who had "discovered" sustainable pace.
What is sustainable pace
It really is very simple it's a pace that you can maintain for a required period of time, sounds so very simple but that's because it is and guess what it works.
Out for my very next run I slowed it down and guess what I went straight through with no problem, sustainable pace so very simple and so effective