Dr Maroon discusses what it feeling to have completed his 5th World Championship Ironman Triathlon in Kona, HI.  His blog post appears on UPMC Blog post on Nov 6, 2013 – Read Entire Post Here

The incredible high from the massive release of endorphins—that intense feeling of “flow” and focus—was followed, within 48 hours, by a depletion of the “feel good” brain factors and so I experienced a mild depression. But a week later, what lingered was the cheers of the crowd and the immense sense of satisfaction I felt when I heard the announcer call my name and tell me I was “an Ironman.”