Workout Update: 645 Cardio/Lift 4 Day 37

Day 37 was the Back and Biceps workout in Lift 4, which was a 50/50 resistance/HIIT workout, so I did a less intense 645 cardio workout in the evening. Again, in the Lift 4 workout, I started using the heavier weight I used last week, but I had to reduce the amount of weight I was using in the second and third sets for a couple of them. Overall, however, both workouts went well.