But I'm not training for a marathon and yet I still managed to clock mileage in the 30s last week.
The distance between the mental peaks and troughs is bigger than it ever has been at the moment.
My mood is a sine wave with a huge amplitude (delirious excitement, crushing worry) and a tiny wavelength (hourly shifts).
All the energy carried along in this wave needs somewhere to go and running feels like the natural outlet.
