This is a journey of a different kind. Yes, much of the book was about gross stuff, but it was seriously interesting. Roach truly is the funniest, best science writer I've ever had the pleasure to read. Roach has a way of taking you along this field trip asking all the questions that you know you wouldn't have the guts to ask, of the professionals who are passionate about your gastrointestinal tract.
basically an evolved digestive system. The alimentary canal is the
core of the man-beast. It creates our energy & all the rest of the
body is simply a way to spread the wealth & get a return investment
to feed it more efficiently. She also explores the similarities & differences between our digestive system & that of herbivores a bit.
If you've ever had a colonoscopy, constipation, heartburn, or were interested in medicine or history, this book is for you. Mary Roach did an excellent job of presenting the alimentary canal to the non-medically educated reader. As always her eye and ear for the interesting, bizarre, and absurd make wonderful reading.