The goal is to identify what biological drives resonate with us the most, and turn that into a productive healthy pursuit. When we use our hard wired biology, then we do not have to create artificial (and therefore fleeting and impermanent) motivation. Nor do we have to rely on determination, which requires mental energy and fortitude, the levels of which can be depleted at different times by other things in our life, and thus is also impermanent.
The Bio Joy Diet 