Day 170. Endurance of a Hockey Player - Stanley Cup 2013

How in the world did the Blackhawk and Bruin players race around in 3 overtimes in the first game of the Stanley Cup 2013 playoffs?  The lung capacity, the endurance--I mean--unbelievable!  Congratulations to both teams--what a phenomenal game that was!  I was tired, and I was just sitting on the couch (well, I guess there was a lot of jumping up and down on my part!) Ha!