Day 15 marks the start of week 3 of the program, which brings a new tempo and a slight adjustment to the order of the workouts. Today was an upper-body workout (weeks 1 and 2 started with lower-body on the first day of the week, then upper body on the second day). It was a burnout workout with four blocks. Each block had a weighted exercise, followed by a band or bodyweight burnout move. The first block targets the back, the second biceps, the third chest, and the fourth shoulders. The tempo this week is 3x1, so three counts to raise the weight and one count to lower it. That tempo was used for all the weighted exercises except biceps curls; however, in that block, you perform one-arm biceps curls for two sets (one arm for the first set and the opposite arm for the second set), followed by both arms for the third set. It was another very intense workout, despite its short duration. If you select weight correctly, you will have to drop the weight by the second or third set for most of the weighted exercises, and you will feel a burn even if you are using very light weights.