The Science of Fat

Scientists are unraveling the mechanisms that dictate how the brain and body regulate weight. In four presentations, Dr. Ronald M. Evans and Dr. Jeffrey M. Friedman discuss what the latest advances in genetic and molecular research tell us about why some people are hefty while others are lean. Understanding the biological systems that control body weight and metabolism, as well as these systems¿ environmental interactions, could lead scientists to treatments that curb obesity and treat its negative health consequences.