"Breath: The New Science of a Lost Art" is a book written by James Nestor, a journalist and author. The book was published on May 26, 2020, by Riverhead Books and quickly became an international bestseller.

In "Breath," Nestor explores the importance of proper breathing and its impact on our health and well-being. He delves into the historical, scientific, and personal aspects of breathing, with a particular focus on the differences between mouth breathing and nasal breathing.

Nestor takes readers on a journey around the world, investigating ancient breathing practices and modern scientific research. He explores the benefits of conscious breathing techniques and how they can improve athletic performance, rejuvenate internal organs, alleviate snoring and asthma, and even straighten scoliotic spines.

The book challenges the notion that breathing is a simple and automatic process, highlighting the consequences of breathing incorrectly and the potential for improvement through conscious breathing practices. Nestor combines ancestral techniques with modern scientific knowledge to provide readers with a comprehensive understanding of the art and science of breathing.

"Breath" has received positive reviews for its engaging storytelling and eye-opening revelations about the power of proper breathing. It has been praised for its transformative potential and its ability to change the way readers think about their bodies and minds.

Overall, "Breath: The New Science of a Lost Art" offers a fascinating exploration of the science, history, and personal experiences surrounding breathing, emphasizing the importance of proper breathing techniques for our overall health.