#1 New York Times Bestseller. This groundbreaking guide reveals new science on how to delay aging and provide a long, healthy life for our canine companions. Rodney Habib and Karen Becker, DVM, globetrotted to gather the best wisdom from top geneticists and longevity researchers; they also interviewed people whose dogs have lived into their 20s and even 30s. The result is this unprecedented and comprehensive guide filled with surprising information, invaluable advice and inspiring stories about dogs and the people who love them.