Jocko Willink, a retired Navy SEAL and Brazilian jiujitsu black belt, works out up to three hours a day. He varies his exercises to stay healthy long-term and avoid having any athletic weaknesses.

Jocko Willink kept his Navy SEAL habit of waking up early to get an edge in the business world. He said the strict, "boring" routine helps him stay focused and prioritize his health and work. His ...

Jocko Willink, an entrepreneur, starts his day at 4:30 a.m., a habit he picked up in the Navy SEALs.Courtesy of Jocko Willink By the time most people wake up, Jocko Willink has finished his workout, ...