"Can't Hurt Me: Master Your Mind and Defy the Odds" is a memoir and self-improvement guide by David Goggins, published on December 4, 2018. The book falls under the genre of autobiography and self-help. Goggins, a retired Navy SEAL and ultra-endurance athlete, shares his life story, detailing his journey from a troubled childhood marked by poverty, abuse, and prejudice to becoming a U.S. Armed Forces icon and one of the world's top endurance athletes. He emphasizes the importance of mental toughness, self-discipline, and hard work in overcoming obstacles and reaching one's full potential.
In "Can't Hurt Me," Goggins introduces the concept of "The 40% Rule," suggesting that most people only tap into 40% of their capabilities. He encourages readers to challenge self-imposed limits, embrace discomfort, and view challenges as opportunities for growth. The book highlights Goggins's personal strategies for building mental resilience, including the "Accountability Mirror" and the "Cookie Jar". He is the only member of the U.S. Armed Forces to complete SEAL training, U.S. Army Ranger School, and Air Force Tactical Air Controller training. As of August 2023, "Can't Hurt Me" has sold over 5 million copies. As of February 2026, there are no film or TV adaptations of "Can't Hurt Me."