I don't know why the pull-ups and chin-ups tax my pec muscle so much, but they just do. And I now know all too well the feeling of "you are now going to injure yourself." So I replaced that portion of today's workout with a dumbbell circuit I like and just kept the video rolling to hang out with Dan and use the timer for my own purposes for my dumbbell sets. Onward we go! Happy Hump Day, people!