How's Your Heart?

Do you ever get so involved in your work that you feel your heart racing -- and not in a good way? Lately, I've had so many little things needing my attention in Cube City that I feel like I'm running a mile a minute all day long. I don't have time to relax. Running is supposed to be good for the heart, but only in moderation. I don't think there's any such thing as moderation in Cube City.