Kevin, age 43 asks about a 50-K race he has scheduled. "Do I begin the MAF training now and just run the race with whatever gains I've made or do I continue training as I have been and begin MAF following the race?" [00:02:49] 

What are the consequences if I went over MAF for one run? [00:09:20] 

Matthew, age 28 asks, "I've been running for about 17 years but only starting training by Dr. Phil when I had my ACL reconstructed about five months ago. As I recover from this, how do I know when I can push it back to my regular heart rate of 150?" [00:12:56] 

Two questions from a listener about eating primally. Does it matter what time of day one does an intermittent fast? [00:16:38] 

This person wants to know about running slowly asking if it is okay four to six months of Zone 2 training? [00:19:32] 

How high should my heart rate be if I am beginning my Primal Endurance training after a period of time off from training? [00:20:51]