This book may seem it doesn’t fit anywhere but it does. If there’s a secret to old age, the authors find, it’s living conscientiously and bringing forethought, planning, and perseverance to one’s professional and personal life. Individual life stories show how different people find the right balance in different ways, depending on their personalities and social situations. Drawing from the most extensive study of long life ever conducted, The Longevity Project busts many long-held myths, revealing how: many of those who worked the hardest actually lived the longest; and, it’s not the happy-go-lucky who thrive-it’s the prudent and persistent.