I was 26, and could feel my heart pounding in my chest when walking up the stairs at home. There were a few people at work who ran during their lunch hour, so I started to go out with them. That's where it all started really, and I just stuck with it.
The willpower comes from the fact I can eat this (wife made it today):
I only really struggle when I'm working nights (this week). Only manage to get about 4 hours sleep during the day, and then trying to go out for a run when it's dark / cold / raining in my lunch break is the only part where I have to really motivate myself. Going out in about 10 minutes for a steady 10KM.
I've also found having a target helps. I'm doing a few more half marathons next year. Currently training for Silverstone in March, and aiming to get under 1hour 30minutes
I had my physical checkup last months after years of not doing it and the results are in. Everything is in well within range.
It helps that I started going to the gym several days a week.
Hopefully I can get to do the NYC marathon in a few years.
Was a few months before I felt confident enough to start to run longer. My goal was originally to be able to run 6KM, which there was a specific route I wanted to be able to run. Once I'd then managed to complete that route (took me 1 hour originally to be able to do it), I entered my first 10KM race a few months later.
I then started doing a regular 5KM route around work in my lunch break, and that's where it all took off from really.
I live in the perfect area for a nice loop around town through a park (about 10 blocks through the south portion of town until you get to the entrance and the entrance is 3 blocks the other way from my street).