aggle-rithm
Ardent Formulist
No neural connections from brain to gut??
http://www.scholarpedia.org/article/Enteric_nervous_system
You got me! I just make it up as I go along.
No, seriously, I heard this on a documentary once. It made an impression on be because I thought, "That's why people who are paralyzed from the neck down are still able to digest food."