The Caveman DNA
Shoyo JackMartial arts, mindset, and the unglamorous work of progress. Written for ANYONE who cares more about staying power than shortcuts.
| Platform |  | Pricing | Only free issues | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 17 | Subscribers | Read | shoyojack.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
Method to the Madness: The Mike Tyson Death Blow
In all of combat sports, I can only name two fighters off the top of my head who possess scary, devastating knockout power: Former UFC heavyweight champion Francis Ngannou and the OG baddest man on Earth, Michael Gerard Tyson.
Why Do Liver Shots Hurt So Damn Bad? I Asked A Doctor.
A liver shot is one of the most menacing experiences one can have in a fight.
I Suffered a Freak Injury During a Grappling Tournament. Here Are 7 Lessons I Learned.
James Heilman, MD, CC BY-SA 3.0, via Wikimedia Commons
The Mats Don’t Care How Old You Are
My oldest Jiu-Jitsu student is 66 years young. That’s not even the kicker.
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Authors
The writers behind this newsletter.
Lifelong martial artist. Jiu-Jitsu coach. I write to help people become the best versions of themselves through martial arts, 1% at a time.
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