Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen is a 2009 book by Christopher McDougall about the Tarahumara people of Mexico, who are known for their long-distance running abilities.
Did you read that book a long time ago ago it came out? I think it was called Born to Run, but it was like about the Taro Humara tribe.
""The book is brought up in the context of discussing ultramarathon running and the Tarahumara tribe's unique approach to the sport."