According to Dr. Peggy Mason (chair of Neurobiology – U of Chicago), eating is a natural form of pain relief.
During the course of her research, Dr. Mason found that rats will not react to moderate amounts of pain while they are eating or even if they are being given a squirt of water directly into its mouth.
Similar to the effect of morphine, eating or drinking causes a part of your brain (the medullary raphe) to automatically and unconsciously block pain sensations.
And while this may be a useful tool for animals in the wild who are faced with food shortages, it is less helpful for humans have 24-7 access to inexpensive, calorie dense food.
And, to make things worse, not only can your medullary raphe ease your pain, it also inhibits your ability to STOP EATING.
And as a result of this double whammy, Dr. Mason concludes that biology trumps will power and that obesity is not as simple as “eat less & move more”.