Only Mary Roach would start a book with a story about diarrhea. I absolutely loved “Stiff,” so I had high expectations for “Gulp.” Also, I read “Stiff” over 6 six years ago, so her tone and style were a nice surprise all over again. I absolutely love the way she writes. It makes me laugh, makes me comfortable with uncomfortable, “taboo” subjects, and draws me in on the joke, making me a co-conspirator. That said, “Gulp” is a slight misfire in kind of a fundamental […]