By increasing your energy at the cellular level, you can help to reduce fatigue, increase stamina, and improve overall health and energy.
The mitochondria is the part of the cell responsible for the utilization of energy for metabolic function. Keeping the mitochondria healthy, and enzyme content high, can help to increase energy at the cellular level.
Additionally, increasing mitochondrial activity (cellular energy), will help against free radicals, which keeps the body healthier.
Of course, you already know how important it is to increase energy at the cellular level. The real question is how? How can you accomplish increased cellular level energy? The top three ways are with exercise, nutrition, and supplementing.