· The direction-finding technology employed by the global positioning system in your car is now being used in the treatment of prostate cancer, according to ABC News's
· Sharon Moalem, who holds a PhD in neurogenetics, and Jonathan Prince, former speechwriter for President Bill Clinton, explain in Survival of the Sickest: A Medical Maverick Discovers Why We Need Disease (William Morrow, $25.95) why diseases persist in modern society despite rapid technological advances.
Informed by the kinds of medical oddities and eclectic facts that helped make bestsellers of "The Tipping Point" and "Freakonomics," the book suggests that evolution through natural selection favors a long life with disease over a short one without it. Along the way, the authors address such conundrums as: Do tanning salons lower cholesterol? Was diabetes evolution's response to the last Ice Age? Tidbits to leaven any conversation.
-- Rachel Zavala