Full story: http://irp.nih.gov/ourresearch/resea...

Kevin Hall, Ph.D., applies a physicist's view of energy to the human body at the National Institutes of Health (NIH) Intramural Research Program (IRP). Dr. Hall is a Senior Investigator in the Laboratory of Biological Modeling at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

Body Weight Simulator: http://bwsimulator.niddk.nih.gov/