As a fellow sufferer of depression, I can relate and agree that the more intense the effort the greater the release of hormones/feelings which appear to suppress the depressive symptoms. That being said however, I have found long walks of a low intensity have been especially useful. Particularly on trails or hiking, the constant mindfulness of each step over rocks and roots helps put me in a meditative trance.

Solvitur Ambulando, it is solved by walking

>Solvitur Ambulando, it is solved by walking

This is really interesting, in my martial art, which I did extremely actively in my youth - but far less now -- one of the sayings is "Keep walking" and "Keep moving"

The "Keep walking" is even used in some of the learning of actual techniques -- you move into a certain position with your Uke, and then... keep walking... and it executes the throw.

Keep walking is also used when talking about meditation in their teachings as well... movement meditation.

So you literally walked it off. Perhaps there's wisdom in that saying.