📘 Breath: The New Science of a Lost Art is a popular science book by journalist James Nestor, published by Riverhead Books on 26 May 2020. [1] It argues that breathing habits—especially nasal versus mouth breathing and slower, lighter rhythms—shape sleep, cardiovascular and mental health, weaving history, physiology, and self-experiments such as a Stanford trial alternating enforced mouth- and nose-breathing. [2] The book is structured in three parts and ten chapters (e.g., “Nose,” “Exhale,” “Slow,” “Less,” “Chew,” “Hold It”). [3] Reviewers describe the prose as engaging, reported narrative that blends travelogue with accessible science. [4][5] It became a New York Times bestseller and a Washington Post Notable Nonfiction Book of 2020, and—according to the publisher—has sold more than three million copies in 44 languages. [1][6]

Breath by James Nestor
Full titleBreath: The New Science of a Lost Art
AuthorJames Nestor
LanguageEnglish
SubjectBreathing; Respiration; Health
GenreNonfiction; Popular science
PublisherRiverhead Books
Publication date
26 May 2020
Publication placeUnited States
Media typePrint (hardcover); e-book; audiobook
Pages304
ISBN978-0-7352-1361-6
Goodreads rating4.1/5  (as of 19 October 2025)
Websitepenguinrandomhouse.com

Chapter summary

This outline follows the Riverhead hardcover edition (26 May 2020; ISBN 978-0-7352-1361-6).[1][7][3][8]

I – The experiment

🐒 1 – The Worst Breathers in the Animal Kingdom.

👄 2 – Mouthbreathing.

II – The lost art and science of breathing

👃 3 – Nose.

💨 4 – Exhale.

🐢 5 – Slow.

6 – Less.

🦷 7 – Chew.

III – Breathing+

8 – More, on Occasion.

⏸️ 9 – Hold It.

⏱️ 10 – Fast, Slow, and Not at All.

Background & reception

🖋️ Author & writing. Nestor is a science journalist and author of Deep (2014); the publisher notes that Breath follows his reporting across labs, ancient burial sites, Soviet facilities, choir schools, and city streets to examine how breathing works and why it went awry. [1] He frames the book as a “scientific adventure,” linking breathing patterns to health and recounting how recurrent respiratory issues led him to test claims first-hand. [2] A central episode is a Stanford-run experiment overseen by an otolaryngologist that forced mouth-only breathing for 10 days before switching to nose-only breathing, with diary-style measurements of snoring, apnea events, and blood pressure. [9] The book’s voice mixes reportage, history, and practical techniques across three parts and ten concise chapters. [4][3]

📈 Commercial reception. Nestor’s site records that Breath spent 20 weeks on the New York Times bestseller list. [10] In the sales week ending 30 May 2020, Publishers Weekly reported the book’s debut at #12 on Hardcover Nonfiction. [11] It was also selected as a Washington Post Notable Nonfiction Book of 2020. [6] The publisher attributes more than three million copies sold and translations into 44 languages. [1]

👍 Praise. Kirkus Reviews called the book “a welcome, invigorating user’s manual for the respiratory system.” [4] Publishers Weekly praised it as a “fascinating ‘scientific adventure’” that convincingly argues everyday breathing is “vital to get right.” [2] The Boston Globe highlighted its “entertaining, eerily well-timed” explanations of proper breathing and its potential to change daily habits. [5] Library Journal deemed it “highly recommended,” noting the clear synthesis of research, interviews, and techniques. [12]

👎 Criticism. In the Wall Street Journal, Sam Kean faulted the book for not applying enough skepticism to “dicey” evidence and for underplaying placebo effects. [13] Psychiatrist Kate Womersley, writing in The Spectator, argued that Nestor leans heavily on anecdotes and makes overbroad claims about nitric oxide and CO₂, cautioning against turning “enhanced breathing” into a commercial self-optimization trend. [14] A trade article in Sleep Review welcomed the book’s accessibility but warned that popular practices like mouth-taping should not displace clinical diagnosis and care. [9] Beyond reviews, a 2023 meta-analysis of randomized trials found small-to-moderate benefits of breathwork for stress, anxiety, and depressive symptoms, while urging caution due to moderate risk of bias and heterogeneity in studies. [15]

🌍 Impact & adoption. Fresh Air devoted a full episode to Nestor on 27 May 2020, amplifying the book’s core ideas to a national audience. [16] The book was shortlisted for the 2021 Royal Society Science Book Prize. [17] Nestor later created a long-form course, “The Power of Your Breath,” for BBC Maestro, reflecting mainstream uptake of breathwork education. [18] Educational outreach also included contributions to The Global Classroom’s breathing programming for schoolchildren in 2021. [19]

Related content & more

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References

  1. 1.0 1.1 1.2 1.3 1.4 "Breath by James Nestor: 9780735213616". Penguin Random House. Penguin Random House. 26 May 2020. Retrieved 19 October 2025.
  2. 2.0 2.1 2.2 "Breath: The New Science of a Lost Art". Publishers Weekly. 19 March 2020. Retrieved 19 October 2025.
  3. 3.0 3.1 3.2 "Breath : the new science of a lost art". Marmot Catalog. Marmot Library Network. Retrieved 19 October 2025.
  4. 4.0 4.1 4.2 "BREATH: THE NEW SCIENCE OF A LOST ART". Kirkus Reviews. 20 April 2020. Retrieved 19 October 2025.
  5. 5.0 5.1 Miller, Stuart (21 May 2020). "Yes, changing how you breathe will help you live longer". The Boston Globe. Retrieved 19 October 2025.
  6. 6.0 6.1 "50 notable works of nonfiction in 2020". The Washington Post. 19 November 2020. Retrieved 19 October 2025.
  7. "Breath : the new science of a lost art". WorldCat. OCLC. Retrieved 19 October 2025.
  8. Krasowski, J. A. (2020). "Breath, The new science of a lost art". Medical Reference Services Quarterly. doi:10.1080/08869634.2020.1823793. Retrieved 19 October 2025.
  9. 9.0 9.1 Roy, Sree (4 December 2020). "A Popular New Book Elicits Gasps of Delight & Concern from Sleep Specialists". Sleep Review. Retrieved 19 October 2025.
  10. "About — James Nestor". MRJAMESNESTOR. 2025. Retrieved 19 October 2025.
  11. Juris, Carolyn (5 June 2020). "This Week's Bestsellers: June 8, 2020". Publishers Weekly. Retrieved 19 October 2025.
  12. "Breath: The New Science of a Lost Art". Library Journal. 1 May 2020. Retrieved 19 October 2025.
  13. Kean, Sam (31 May 2020). "'Breath' Review: Eager Breather". The Wall Street Journal. Retrieved 19 October 2025.
  14. Womersley, Kate (1 August 2020). "We all breathe – 25,000 times a day – so why aren't we better at it?". The Spectator. Retrieved 19 October 2025.
  15. Fincham, Guy William; Clara Strauss; Jesus Montero-Marin; Kate Cavanagh (9 January 2023). "Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials". Scientific Reports. 13: 432. doi:10.1038/s41598-022-27247-y. Retrieved 19 October 2025.
  16. "How The 'Lost Art' Of Breathing Can Impact Sleep And Resilience". Fresh Air Archive (WHYY/NPR). 27 May 2020. Retrieved 19 October 2025.
  17. "Shortlist for 2021 Royal Society Science Book Prize revealed". Royal Society. 29 September 2021. Retrieved 19 October 2025.
  18. "James Nestor — The Power of Your Breath". BBC Maestro. Retrieved 19 October 2025.
  19. "The Global Classroom's Top Five Breathing Techniques for Children". The Global Classroom. 25 March 2021. Retrieved 19 October 2025.