Today we are leading off with a film. This film concerns the way that the body functions, it explains that your body is not just a simple machine, where all of the fuel you are putting into it is either burned or stored. Increasing the work output of this machine does not automatically increase the need for fuel of the machine.
As a complex machine your body can actually lower the rate at which some of your systems consume stored energy. It actually raises and lowers your metabolism based on the needs of the rest of the system. When you work hard you don’t automatically need energy stores (fats), your metabolism slows down in other areas (digestion, sex organs, lymphatic) so that the overall body requirements do no spike and trough throughout the day.
Your feeling of being energetic is controlled by this system. It is known that if you are overweight, or that for some reason your body is shunting large amounts of the energy you eat to stored fats, you will be lethargic. Your lethargy is a symptom of your body thinking that you should be storing energy instead of expending it. Lethargy is a symptom not a cause of weight gain.