Free books
Why Your Back Hurts
Why Your Back Hurts is Jim Goetz’s 342-page, evidence-based guide to back pain, sciatica and referred pain: what to check first, what usually causes it, and how to find your path to recovery. Start reading free.
Jim leads FIT Stretch and human-performance programs at Functionised; chiropractic care at FIT Clinic is provided by Dr. Michael Brandon, DC.

The Longevity Trinity
The Longevity Trinity is a short book by Jim Goetz about three physical tests that large studies have linked with how long people live, plus a daily routine to work on them. Read the free preview now; the full free edition is planned for December.

Heel Yourself
Heel Yourself is the 139-page, evidence-graded manual Jim Goetz wrote for the nurses, runners, and grandparents who limp into our clinics. Get the full digital edition free.
Paperback $12.99 on Amazon. The digital edition is free here.

There’s a new free book every month. Next book: November 2026.
“Doc Mike Brandon has been our chiro for the past two years, and he has yet to disappoint us in pretty much any service he has provided.”
Individual experiences shared by patients; results vary.
What patients say
“Dr. Mike at FIT Clinic is hands-down the best chiropractor I’ve seen. He’s incredibly knowledgeable, thorough, and truly cares about long-term wellness. I’ve seen real improvements thanks to his personalized care. Highly recommend!”
“Doc Mike Brandon has been our chiro for the past two years, and he has yet to disappoint us in pretty much any service he has provided. Always makes great conversation and makes our day! Thanks for everything you've done for us!!”
“I can’t say enough great things bout Dr. Brandon. As a competitive athlete with Spartan races and CrossFit, I’m constantly challenging my body and Dr. Brandon has been able to “fix” me on several occasions so I could compete. His knowledge and experience never cease to amaze me and I recommend him to my gym and friends.”
Google rating 4.7 out of 5 from 41 reviews. Read them all on Google
Individual experiences shared by patients; results vary.