I'm not sure what happened to me tonight at RPM at the gym but for the first time ever I actually enjoyed it. I enjoyed pouring with perspiration, I enjoyed the steep climbs on the bike and the speedwork and the loud music and the challenge. Somehow half way through the class the endorphins set in and I felt something like a runners' high! I couldn't believe it, I worked so hard and felt just great after the class. I even felt myself smiling DURING the class - unheard of for me! The instructor even commented about how well I worked. Wow, I wish those same endorphins could set in while I'm running and give me some well-needed speed.