Of course you know what a good diet is, and what you are supposed to be eating. But then along comes one of those nasty cravings for your favorite excess calorie food, and just as sure as the sun follows darkness, your diet will now have to start tomorrow. How did this happen? Could it be that your willpower is just incredibly weak? Or is it a more sinister plot, one that involves survival gone wrong?
A human study using brain imaging scans while monitoring blood sugar levels helps shed light on this very important topic. The issue is actually rather simple, and can be summed up as follows: At what point does your rather animalistic and stimulus-response subconscious brain exert so much power over your higher powered consciousness that you now eat things you know you shouldn’t?
Your subconscious brain is all about survival. For example, when a car pulls in front of you and you swerve to get out of the way, you do not stop to ponder your behavior and plan a careful course of action. Indeed, your subconscious brain senses a threat to survival and takes over complete control of your body so that you can react and survive—powerful stuff.