Fructose-Mountain+Dew

=Chemical Structure= http://content.answers.com/main/content/wp/en-commons/thumb/8/84/150px-Alpha-D-Fructofuranose.svg.png

=Chemical Formula= C6H16O6

If you have too little fructose it can lead to fatigue and your body cannot do certain as effectively. If you have too much it can lead much energy but a "crash in energy later. Also this over and over to do would not be healthy. Every food group contains this chemical and the system that would be most affected is respiratory system system because the energy goes to that and helps you get the bursts of energy that you need.