Reminds me of a Radiolab podcast about parasites and the improvement of productivity in the deep south as a result of the introduction of outhouses. http://www

Reminds me of a Radiolab podcast about parasites and the improvement of productivity in the deep south as a result of the introduction of outhouses. http://www.radiolab.org/2009/sep/07/ http://www.radiolab.org/2009/sep/07/ (it's the part about farmers, not sure about a specific seek to point, sorry it's been a while)