From the book:

Have you ever wondered why your teeth chatter when you’re cold?
“When the body gets too cold, the area of the brain called the hypothalamus alerts the rest of the body to begin warming up. Shivering, the rapid muscle movement that generates heat, then begins. Teeth chattering represents localized shivering.”

Did you know that an office setting might be worse for your health than toilet seats?
“Charles Gerba, a microbiologist at the University of Arizona, found the typical office desk harbors some 400 times more disease-causing bacteria than the average toilet seat.”

What causes morning breath?
“Morning breath results from anaerobic bacteria, the xerostomia (dry mouth) or the volatile sulfur compounds (which are waste products from the bacteria). Other contributing factors to foul oral odor includes medication, alcohol, sugar, smoking, caffeine, and eating dairy products.”

Why do beans give you gas?
“Beans contain high percentages of sugars that our bodies are unable to digest. When the sugars make it to the intestines, bacteria go to work and start producing large amounts of gas.”

Why do men have nipples?
So we can accost them at parties! YAY!

Via Reuters.