The Glycemic Index ranks foods on how they affect the blood glucose levels. It measures the amount of increase in your blood glucose levels two to three hours after eating. The Glycemic Index shows how quickly a single food will turn into blood glucose on a scale of 100. Pure glucose is given a value of 100. The Glycemic Index was created with the diabetic in mind.
Having your spouse as part of your fitness lifestyle can take your own levels of fitness to a new level. Imagine that you go to the gym and workout and are around 100% intensity. Now imagine that you BOTH go to the gym and workout and are around 100% intensity and it carries over into other aspects of your life (sleeping, eating, etc).