The book "Breath: The New Science of a Lost Art" by James Nestor explores the importance of proper breathing and its impact on our overall health and well-being. Nestor delves into the science behind breathing techniques and uncovers the lost art of breathing that has been largely forgotten in modern society. He discusses how our modern lifestyle, including factors such as stress, pollution, and sedentary behavior, has led to a decline in our breathing abilities and subsequent health issues. The book offers practical tips and exercises to help readers improve their breathing patterns and optimize their health. It also highlights the potential benefits of conscious breathing, such as increased energy, reduced stress, improved sleep, and enhanced athletic performance. Overall, "Breath" aims to educate readers about the power of proper breathing and inspire them to make positive changes in their lives for better health and well-being.