David Goggins' book cover for 'Can't Hurt Me' David Goggins is a retired Navy SEAL, ultramarathon runner, ultra-distance cyclist, triathlete, public speaker and published author. Goggins has long ...

David Goggins is known for his intense, physically grueling fitness regime, and for never letting himself off the hook. He even wrote a book on the subject, Can't Hurt Me, in 2018.And in a recent ...