I sit under a tree in sunny London and pontificate on the role "feel good" chemicals play in how we eat. This is a bit of a departure from the usual subjects, but relevant never-the-less. This episode is also notable for the amount of birdsong in the background. I decided not to edit out these lovely chirping noises, nor the sound of the cityscape either--instead, I've merely done some standard podcast filtering. I think the ambience of the setting survive.