This is SCIENCE FRIDAY, I'm Flora Lichtman, filling in for Ira today. You know the phrase you are what you eat? Well, new research suggests a slight modification: Your gut bacteria are what you eat. And if you eat more red meat, for example, you'll nurture populations of microbes that like to eat red meat, too, which might not seem like a bad thing except that researchers have pinpointed a compound in red meat called L-carnitine that when broken down by gut bacteria might contribute to heart disease.
This is SCIENCE FRIDAY. I'm Flora Lichtman. Later in the hour, a teenage science activist and the plight of the monarch butterfly. But first, researchers have developed a new way to fight antibiotic-resistant microbes by borrowing a trick from a longtime foe of the bacteria, the bacteria phage.
FLORA LICHTMAN, BYLINE: Up next, another mover and shaker in the alimentary canal - coffee. Whether you're a home brewer or a latte devotee, whether you take it light and sweet or on ice, your coffee is guaranteed to be chock full of chemistry. It starts in the bean, which is actually not a bean at all.
It's a seed, according Harold McGee, author of "On Food and Cooking: The Science and Lore of the Kitchen" along with other books on science and food. And we caught up with Harold, to hear more about how coffee gets its signature taste.
Good morning. I'm David Greene. Conspicuous consumption is the art of buying lots of expensive stuff to show off. It is part of daily life in the Emirate city of Dubai, even for the police. They just added a slick green and white Lamborghini with a $400,000 price tag to their force. It goes more than 200 miles per hour, which is useful in the fast moving kingdom.
Police say about 15 percent of the speeding tickets go to motorists going more than 130 miles per hour. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.