The hormone ghrelin is how our stomachs tell our brains to eat. Understanding how ghrelin works may lead to new therapies for diabetes and obesity, or a treatment for a rare genetic disorder called Prader-Willi syndrome. James Hougland, PhD, an associate professor of chemistry at Syracuse University and an adjunct professor of biochemistry and molecular biology at Upstate, is at the center of this research.  Listen to the podcast produced by Upstate Medical University HealthLink on Air, an organiziation that explores health and medical issues of interest to Central New Yorkers.