The ability to think clearly and act fruitfully depends on the chemical processes occurring in the body. Physical intelligence is the active control of physiology, the ability to influence the balance of chemicals in your own body. The book will tell you about the chemical basis of emotions and help you develop strength, plasticity, resilience and endurance. You'll be more productive, you'll be able to lead more effectively, and you'll be able to more easily cope with difficult situations at work and at home—which means you'll be happier.