Kai, Annabelle and Amrik
Some workouts seem to give you that post workout euphoria more than others. They are usually metabolic in nature and demand a lot from our cardio-respiratory system. They are merely one piece of the CrossFit programming. We often joke about workouts like these as "cardio with weights". They are often the favorite workout for some athletes and become something they look for frequently. Don't be that guy. Don't forget to lift heavy.
Workout:Heavy Fran
21-15-9
135 pound Thruster
45 pound Pull-up