Whether you want to build muscle, burn fat, or live longer, some of the simplest exercises are the best place to start, the retired Navy SEAL Jocko Willink ... even as a fitness beginner.

Jocko Willink, a former Navy SEAL commander ... do pull-ups is a set of rings or a pull-up bar and you can handle that workout. The push is based on push-ups and dips, and all the exercises ...

So for example, you still wake up at 4:30 in the morning, to go workout, what was it about your time in the Seals, that you wanted to keep these habits up? Jocko Willink: They're good habits ...

Jocko Willink is a retired Navy SEAL commander ... And even if you don't want to try one of the workout routines in the "Discipline Equals Freedom: Field Manual," you should do some form of ...