On this episode of humanOS Radio, Dan welcomes Ben Miller to the show. Ben is a principal investigator in the aging and metabolism research program at the Oklahoma Medical Research Foundation. In his study, Miller and his team randomly assigned 53 participants to consume either placebo or metformin for 12-weeks, while completing a supervised aerobic exercise program. This exercise regimen elicited measurable improvements in blood sugar control, insulin sensitivity, and aerobic fitness for the volunteers, as you would obviously expect. But when the groups were compared, some meaningful - and troubling - differences emerged, suggesting that metformin was counteracting some of the benefits associated with exercise. Check out the interview to learn more!