Weaving cultural history and scientific exploration together, The Left Stuff takes you on an adventure to discover the truth about why humans choose one hand over the other. From high-tech neuroscience labs to the rain forests of Africa to the bullpens of Major League Baseball, journalist Melissa Roth investigates how societies and genetics encourage us to choose sides. The Left Stuff gets to the heart of why humans are predominantly right-handed-and why a stubborn minority has persevered against the weight of history and the forces of evolution. Fascinating, provocative, and insightful, this book is a well-crafted and engaging narrative of how modern science has put the power of understanding in the palms of our hands.