Hello again. After doing a few 10k runs I kind of lost interest / motivation & didn't find the time to run for 2 weeks. On Friday I thought I really must go for a run if I am not to stop altogether and just went for a quiet jog around without any targets or prompting from 'Lauren' on my app. I stopped after 4k out of boredon / laziness and was really surprised that I had done it in 19:17 which was a second faster than my previous best for 4k. I would have thought that I would have got slower by not running for a fortnight but it seems that the break did no harm and the longer runs 2 weeks ago had actually improved my natural pace.
So I went out again this morning. My plan was just to run without any prompts again but do the full 5k this time to see if a PB occurred naturally - and so it did. I did put in a bit more effort for the last 500m or so but I was still standing at the end and the timer said 23:29 which is a whopping 39 seconds off my 5k PB from a few weeks ago. Maybe there really is something in this long-slow-run thing and it really does improve your shorter distance times...