Quoting Greg Glassman: "It is impossible to overstate the importance of the neuroendocrine response to exercise protocols. This is why it is one of the defining themes of the CrossFit program. Heavy load weight training, short rest between sets, high heart rates, high intensity training, and short rest intervals, though not entirely distinct components, are all associated with a high neuroendocrine response." Check out the rest of the 2003 interview here. Thursday's Workout: 3,3,3,3,3,3 Squat Clean - Weight is 75% of your 1 Rep Max (ish). When finished. 200 m Run 1 Minute Rest 7 Rounds Be sure you are good and loose for the runs. Attack the distance in its entirety. Score for the Leader Board is total time of your 7 x 200m runs (rest time not included). Many thanks to The Lovely and Talented Miss Sarah Conibear for being the test subject for this workout.