When I was running in college in the mid 70s I knew I wanted to keep on after graduating. It was becoming more common and a couple guys who were older than me had told me that they also were going to keep going. But the next year I saw both of them and they'd stopped. Neither had decided to stop but life had changed and they missed a day here, three days there and just drifted away.I sort of laughed at those guys and thought that would never happen to me.
After graduating I went for a job interview. It was a nine hour round trip drive to get there and maybe three hours of interviewing. When I got home I was exhausted, had a big supper and went to bed. As I was drifting off to sleep it struck me that I hadn't run that day and paniced. The job had already cost me a day's running and I hadn't even started working. I was afraid that in a few months I'd be one of those guys who never planned to quit but did anyway without ever deciding to.
I needed to think of a way to keep that from happening. I knew that I wasn't going to be less fit the next morning than I'd been when I woke up that morning and that's when I figured out that the paradox of training is that consistency is the key but any single run is really expendable. I needed a way to make each day's run matter and that's when I thought of Ron Hill who at the time was just short of a ten year long streak.
I thought that if he could run every day for ten years, maybe I could run every day for a year. If I managed that I reckoned I'd have worked training into my post graduate life and wouldn't need a gimmick like a streak to get out each day. I was successful, had my best racing year ever and at the end of the year felt no need for a day off so I decided to go for two years. At the end of two years I felt no need for a day off and kept going.
That lasted for eleven years. By then I was no longer setting PRs, wasn't happy with work or with life in general and decided to take two weeks off to see if I really wanted to keep running. The break lasted five days before I knew I did want to keep on even as I got slower. After three years of taking days off I found that I actually recovered from illnesses and injuries more slowly than when I did a couple miles when afflicted and didn't really like taking days off so I decided to stop taking them.