Great find mingo, thanks for these links... They're interesting articles... They talk about gut flora being linked to psychiatric illnesses; the stress response of the body; Crohn's disease; asthma; and other illnesses. One lab has successfully cultured gut bacteria in the lab, and successfully transplanted it into mice. (So I think this might be a slightly less scary way of doing faecal transplants!) And that research team seems to be carrying out particularly interesting research.