I was talking about insulin use with my interns today. We were talking about the Team NovoNordisk cycling club, and they figured that these guys would never need insulin because they exercised so much. They were surprised that the riders’ glucose could climb so much with all that activity. As we discussed the reasons I pointed out the effect that can happen to all people who exercise, and why it can be a problem. Check out this week’s Disaster Averted to learn how you can help your exercising patients.