Overeating makes the brain go haywire

"U.S. researchers have determined that overeating makes the brain go haywire, which could lead to diabetes, heart disease, and many other problems. Eating too much food activates a typically dormant immune system pathway in the brain. This process sends out immune cells to attack and destroy invaders that are not there, according to Dongsheng Cai of the University of Wisconsin-Madison. The findings were published in the journal Cell. The research could help explain why obesity causes so many different diseases. 'This pathway is usually present but inactive in the brain,' Cai said. Obesity is a growing problem worldwide with 1.8 billion people estimated to be overweight or obese in 2007. Cai's team studied mice, and tried to explain previous studies that have shown that obesity causes chronic inflammation throughout the body"