Overeating And The Brain

The brain tells us when we are hungry. Specialists think of the stomach as our second brain because our intestinal track actually produces more neurotransmitters or chemicals that work on our brains than the brain does it's self. So, the body is really one system. Think of your brain as the super computer that is running every thing and it is all inter-connected.

But does the brain tell us to overeat? Sometimes it does, if people have damage to certain parts of the brain, they can have faulty signals. The prefrontal cortex comprises 30% of the human brain and acts as the supervisor of the brain. The prefrontal cortex is not fully developed until age 25. When it is weak or damaged, it is like the supervisor in your head is taking a break. So when your inner child is having a tantrum, wanting that 3rd piece of cheesecake, there is less control over the situation. If your prefrontal cortex is not working right, nothing in your life is going to be right. So head injuries can affect overeating as well as low blood sugar. If you don't eat breakfast and provide your brain with the proper nutrients it requires to operate well, you are going to make bad decisions about food the rest of the day. If you don't sleep well, you will have lower blood flow to the brain, so sleep is equally important.

In the studies that have been done by specialists, including Dr. Daniel Annen, being healthy is critical to thinking right. In fact, as a body's weight goes up the actual size of our brain goes down, so judgment changes and reasoning goes down. Also, if you've had a brain injury, overeating goes up. If you've been eating badly for a long time, you become addicted to the bad foods like fat, sugar and salt. When you put them in certain combinations, they actually work on the heroin or morphine receptors in the brain.

Dr. Julian Bales, Chairman of the Department of Neurosurgery at West Virginia University Health Science Center, is on the front line of an experimental approach for the treatment of obesity. The approach targets the brain and not the stomach.

Deep brain stimulation is the insertion of electrodes deep in the brain's hypothalamus, the part that controls our appetites. Neurosurgeons have spearheaded a FDA approved study to see if this could possibly have a benefit for patients with morbid obesity, the most severe form. It works by placing electrodes on both sides of the brain into the hypothalamus, one into the part that is the satiety center which makes you feel full and the other side is the appetite center where the drive for eating is located.

These electrodes have contacts on them that go through these areas, with a pacemaker type generator inserted under the skin. From the pacemaker, they are able to change the settings, and affect the appetite drive those patients have.

In the first series they did, they have learned that the procedure can be done safely, with no side affects and they can affect the urge to eat! They believe it will be well tolerated. They do not have all the results yet, and are now trying to fine tune the settings to see if they can get the weight loss desired by the doctors and patients.

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