The Greatest Muscle


This will be a short one, both because I know thta Dr. Gold is also sending yiou an email today, and also because i am writing this Tuesday to go out Wednesday but still got a lot of work to do today after I write this to get to you tomorrow. 🙂

Then, again, maybe I’ll see some of you tonight.

Or last night since you’ll get this tomorrow. tongue-out


OK, enough of that.

I just want to quickly address my amazing and awesome Executive Assistant, Ms. Ruthe, and all the rest of you reading this, reference her rightful reminder to me yesterday that the brain is not a muscle.

She is, of course, right.

If you didn’t read the original blog that sparked the discussion (of rather the brain is a muscle), you can read it here.


When you do, or read it again to verify what I am about to tell you, you will see i never used the word brain- i only said “between the ears”!

This moment of clarification allows me to more suitably reveal the particular “muscle” that I was talking about- the mind.



  • 1.the element of a person that enables them to be aware of the world and their experiences, to think, and to feel; the faculty of consciousness and thought:“as the thoughts ran through his mind, he came to a conclusion”Similarbrainintelligenceintellectintellectual capabilitiesOppositebody
  • 2.a person’s intellect:“his keen mindSimilarbrainintelligenceintellectintellectual capabilitiesOppositebody

Now, of course, one could easily also argue that the mind is not a muscle either and is again technically right.

In confession, I used the term “most powerful muscle” with a bit of poetic licence to connote a certain understanding about power.


In truth, this power controls everything- our thoughts, emotions, actions, reactions and so much more.

As a man thinketh, so is he….


So, while the mind is niether actually a muscle, nor can we even be sure it’s actually between the ears, we can say in certainty that our training of it is one of the most important things that we can do.


I hope you had as much fun reading this short explanation as I did writing it.

Thank you to Ruthe for inspiring me, through her comment, to write it.

Have a great Wednesday and we hope to see you soon!


Stephen Del Castillo




About Grandmaster Stephen J. Del Castillo: Grandmaster Del Castillo is the founding Master Instructor of Krav Maga Martial Arts and has been empowering lives in Pasco and Hillsborough Counties since October of 2000. He is a 7th degree Blackbelt, MBA, author, mentor and success coach, a US Army Veteran and a proud father and grandfather. He is married to Ms. Barbara Del Castillo who helps him run the school. Grand Master Del Castillo began his training in the early 80’s and has high level blackbelts in Tae Kwon Do, Karate, Premier Martial Arts and Krav Maga Martial Arts as well as experience in kickboxing, Jeet Kune Do and Jiujitsu. He has high level instructor certifications from BBSI, IKMF, and KMG and has been featured in numerous Martial Arts publications and also Success magazine. He was a competitive sport karate and American Kickboxing instructor until he enlisted in the US Army where he served in the 82nd Airborne Division, where he won an Army Green to Gold scholarship and proceeded to ROTC and the University of Tampa. He was commisioned in 1992 and went on to serve in Germany with the 3rd Infantry Division and then in several other posts in the US until he left military service to pursue his dream of creating KMMA in 2000.

The Krav MagaMartial Arts Headquarters is in Lutz, FL at 1900 Land O’ Lakes Blvd., 33549. Krav Maga Martial Arts serves Lutz, Land O’ Lakes, Wesley Chapel, and surrounding areas.

See for more information and to order my book, Developing Your Superpower, Meditations on Mastery, Volume 1.

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