Human behaviors have long been associated with the acquisition of a number of years added to life expectancy. Behavioral components for example may include; eating as you wish versus “Caloric restriction”; which simply is a strategy that sees us eat better quality foods (vegetables over a spectrum of sugars e.t.c) with fewer calories. The average human consumes over 2 kilocalories a day, while an individual on caloric restriction would consume about 1.5 kilocalories daily. However, caloric testing must not be ignorantly misplaced with malnutrition. It has gone on for close to a century now, and its benefits are being translated from lab animals to humans. Key to its approach is the positive effect on controlling terminal health conditions like cardiovascular and neurological challenges, thereby slowing down the aging process and improving life span. Some researchers have equally shown improvement in memory function with caloric restriction experiments. Decades have come and gone since the inception of a revolutionary study on aging and inquisitions into improving life expectancy. And eighty years down the line, Professors Howard S. Friedman and Leslie R. Martin seem to have finally put a finger on the ever evasive factor on aging. Their work has been excitingly put in a masterpiece; The Longevity Project. They have used a popular psychological theology to give an interesting response on who ages quicker and who saves the best for last. The findings outlined in this book will intrigue you; thoughts will fly past your mind with each page flipped for sure. There is more in this book, than many will learn in a lifetime about life span. Cases recruited were very well objectively correlated, and common human behaviors seen to be associated with longevity (slowed aging) were assessed for authenticity. It takes a long time to validate the results of works like this one, looking at the investigated component being a trend in aging. So as expected, a number of cases and investigators never cross the finish line. Professor Howard S. Friedman and Professor Leslie R. Martin in their work, succeeded in bringing to life the fulfillment of surpassing what could arguably the daunting milestone of understanding the aging process across the diverse populations in our world. A remarkable study began in 1921, cautiously following and reporting the lives and emotions of 1500 Americans from their childhood to their recorded death. Long after its inception, the passing away of many participants, and the scripting of the longevity project, a number research teams including that organized by the masterminds behind this book, are still tracking the few subjects still waking up every morning to further recognize and analyze what differences in lifestyle could have predisposed the deceased subjects to pass before their expected time, and prolonged the surviving few even till date. Fascinating, you should know that no one has been able to interpret findings on this long standing study before this time. Questions are still raised as to what factors in individual lifestyle interplay to determine the longevity of any one of us. That is no one before Professor Howard S. Friedman and Professor Leslie R. Martin did.