My body will not even entertain the notion of running early in the day. When I wake up, I'm on half speed and my body feels heavy. I get ready for work on autopilot. By 9 I'm coming to, I might even feel human. I converse if I have to, but I don't like it. I couldn't even contemplate breakfast until 10, ideally 11. I navigate the morning on coffee and bad temper.
And then there's the folk that get up early and run at comedy o'clock in the wee small hours! I find it absolutely amazing and terrifically impressive. I can see the benefits, not least of all if you live in a town, but I just can't do it. The earliest my body will rouse itself to a run is 9ish, but I'd rather wait until lunch. Afternoon is far better, and evening is my ideal time of day for pounding the pavements.
I guess a lot of people do it because they have to, in order to fit in their running with a hectic life schedule, but I'm sure there are some who actually LIKE it!?!
People eh? Go figgur!