Why Certain Types Of Cardio Age You

Exercise is such an important piece of the puzzle in health and fitness, and unfortunately, there is about as much misinformation out there regarding exercise as there is about nutrition. Exercise is considered either aerobic or anaerobic. Our aerobic systems use mostly fat for energy, whereas our anaerobic system relies primarily on sugar. The terms aerobic and anaerobic refer to the presence and absence of oxygen, respectively. Most of our cells prefer to get their energy by using oxygen to fuel metabolism.