You can find Dr. Lewis' course below.
>>Pysch Skill for Fitness Pros<<
Note: the above is an affiliate link, but I wish I had this product when I started coaching as it would have literally saved me years!
The Flex Diet Podcast is brought to you by the Flex Diet Certification. Go to https://flexdiet.com/ for 8 interventions on nutrition and recovery. The course is currently closed, but you can sign up to be notified when the course opens again.