I love running for the almost meditative effects that it has on me. At the same time, I hate that I run so depressingly slow.

In my twenties my times were actually not too bad. Not enough for competitive ambitions but not too shabby either. A mere decade later my running times have deteriorated massively, and just getting below the 1h for 10km again was a massive battle. In past years I often wondered what exactly caused the breakdown of my running abilities. So let's take a look.