Hard!
Every time I go to afterburn I say to myself "what did I get myself into?"...this comment always has the same effect on Mark...he just says "thanks". Last time I walked into a 45 minute climb the jacobs ladder as fast as you can session. afterburn will really work you out even if you are trying to slack a little.
Thank you As1 team for designing such great class. I look forward to it every week and just so I can get exhausted at 6:45am and be dead for the rest of the day :)
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