And as a last point, there's a beautiful study in the Proceedings of the National Academy of Sciences years ago using this deliberate cyclic hyperventilation thing; 25 breath [deeply breathing]. And then another group meditates. And then they inject them both with E. coli. And the people injected with E. coli who meditate get nauseous, vomit, diarrhea, and they get a fever. And the people who [deeply breathing] first, far fewer symptoms, if any.