• May 8, 2012  

    Public health experts have long warned of a growing obesity epidemic in America. This week, the Institute of Medicine and others launched a major campaign in hopes of curbing the problem. Ray Suarez and Dr. Francis Collins of the National Institutes of Health discuss the personal and public consequences of obesity. Continue reading

  • August 1, 2008  

    Scientists announced this week that they’ve found a chemical compound that allows mice to run 44 percent longer on a treadmill — without doing any exercise. Lead researcher Ronald Evans discusses the results and what they could mean for humans. Continue reading