By Pete Rea/ZAP Fitness/Running Journal/January 2010

I have enjoyed penning Learning from the Young Guns now for almost five years, and I am even more excited about the next half decade. I receive countless e-mails each month from loyal Running Journal readers with positive feedback, constructive criticism, and suggestions for future columns or research. I appreciate all of the correspondence. Recently I received an e-mail asking me to do a simple review of many of the basic principles of healthy training and adaptation for improvement we have been talking about the last 41 months.