Traces the importance of smell in our lives, from nourishment to procreation to our relationships with the people closest to us and the world at large. Smell was the very first sense to evolve and is located in the same part of the brain that processes emotion, memory, and motivation. To our ancestors, the sense of smell was crucial to existence and remains so today. Our emotional, physical, even sexual lives are profoundly shaped by both our reactions to and interpretations of different smells. Investigates how our sense of smell functions, examines what purpose it serves, and shows how inextricably it is linked to our survival. Illustrates how profoundly scent and the sense of smell affect our daily lives with numerous examples and personal accounts.