Today’s guest review is by science writer Jordan Gaal. I am pleased to share Jordan’s review here on Read More Science — he provides an insightful glimpse into author Mary Roach’s Gulp, introducing us to Roach’s delightful and interesting story about the science of the digestive system.
Jordan Gaal is a strategic communications and public relations professional serving clients in the agriculture, food and health industries at MorganMyers. He graduated from the University of Wisconsin-Madison in 2018 with a Bachelor of Science in life sciences communication. Jordan’s work has appeared in the Journal of Clinical Neuroscience, the Journal of Undergraduate Science and Technology and the Genetic Literacy Project. Follow him on Twitter or at the scicommreport.com.
If you’ve ever wondered how to survive being swallowed alive or if chewing longer can lower the national debt, then you’re in luck. Mary Roach, author of other humorous and fascinating science stories such as Stiff: The Curious Lives of Human Cadavers and Mars: The Curious Science of Life in the Void, delivers 327 pages jam-packed with science about the digestive system in Gulp: Adventures of the Alimentary Canal.
Roach succeeds at being informative, and often humorous, about everything from chewing to the inevitable (or at least it should be, as you’ll soon learn) disposal of your food, without being overly crude. Roach sums up her literary gut-journey the best:
“I don’t want you to say, ‘This is gross.’ I want you to say, ‘I thought this would be gross, but it’s really interesting.’”
I can assure you, there is no digestive-related stone left unturned. It’s the perfect book for casual reading, and an even better book to binge-read in few nights.
With a delightful use of metaphor, Roach weaves words together to create simple explanations of complex systems, without sacrificing the science. The introduction begins with a brief overview of the entire alimentary canal, defined as the whole passage along which food passes through the body from mouth to anus, including the esophagus, stomach, and intestines. Roach provides in depth explanations of the purpose of saliva, the science of stomach acid and the dangers of hydrogen and methane, the key ingredients in flatulence.
This isn’t only a science book about the alimentary canal, it’s a book about the way scientists work. In each chapter, Roach introduces us to a new scientist, modern or historical. She skillfully transports you to the lab, describing in colorful details the historical, and sometimes forgotten, experiments and procedures that led to our current understanding of digestion.
In chapter five, Roach introduces us to “medicine’s oddest couple”, William Beaumont and Alexis St. Martin. Starting in 1822, they had a strictly professional relationship, at least from what we can tell. St. Martin was a common laborer who was involved in a terrible accident and Beaumont was a scientist looking for something to bolster his lackluster career. Without spoiling too much, St. Martin’s accident resulted in an observable hole in his stomach and Beaumont abused it for science. From this came several discoveries that Roach describes in perfect, humorous science writing — like only she can.
If you aren’t excited yet, in the penultimate chapter Roach describes something called a “megacolon”. It’s pretty close to what it sounds like. Numerous people throughout history have suffered at the hands of the megacolon, a fascinating digestive anomaly to the medical community. One notable character discussed in this chapter is the King himself, Elvis Presley. You’ll have to read for yourself to figure out what Presley and megacolons have in common.
In one word, Roach’s book is intriguing. History buffs will appreciate the accounts of 19th century medical practices and avid science readers will truly enjoy the informative descriptions of the inner workings of our digestive system. For any reader, this book will leave you feeling just a little bit closer to your stomach.
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