Gulp: Adventures on the Alimentary Canal

by Mary Roach

The inside surface of the colon, by contrast, is shiny-smooth as Cling Wrap. It would not make a good bath towel.

This seems strange to me. How is it that we find Christina Aguilera more interesting than the inside of our own bodies? It is, of course, possible that I seem strange. You may be thinking, Wow, that Mary Roach has her head up her ass. To which I say: Only briefly, and with the utmost respect.