sleep. If you toss and turn all night and never reach deep sleep, you won't benefit as much from this powerful hormone.

Sleep is one of the most critical aspects of recovery, so take some time to improve your nights. You'll be rewarded with better workouts and more productive daylight hours.

Jason Koop is a Pro level coach with
Carmichael Training Systems , Inc. (CTS). He graduated from
Texas A&M University with a degree in Biochemistry in 2002. He also was the head distance coach of the Texas Stars Track Club Inc. in
Dallas, TX for 5 years. He is an Expert Level
USA Cycling coach and a NASN Sports Nutritionist.