Thinking on My Feet: The small joy of putting one foot in front of another

I've discovered that going for a daily walk has become as essential to me feeling good for the rest of the day as that first cup of tea. But I would argue that all I am doing is responding to a natural need we all have. Humans have always been migrants, the physiological urge to be nomadic is deep-rooted in all of us and perhaps because of that our brains are stimulated by walking.