I read this because it had an intriguing title. It did provide informative answers to all the questions it posed. I now swallow my chewing gum without a qualm. The only problem was that the interesting information was interspersed with stupid IM between the two co-authors. The problem with a doctor and a comedian working on a book together is that some parts are boring and other parts try too hard to get a laugh.
All in all, I think this book is best suited for the coffee table. Instead of reading it cover-to-cover, I would just recommend you flick to the questions that interest you.
Here are some questions the book answers:
Why do people seem more attractive to you when you are drunk?
Can you swallow your tongue?
Will using a cell phone give you a brain tumour?
Should you starve a fever and feed a cold?
Why do you see stars when you are hit in the head?
Can you get high from licking a toad?
Why do you laugh when tickled?
Is it bad to crack your knuckles?
Does it really take seven years to digest chewing gum?