John Shaffer

Team Physician @IUHoosiers. Division Director of Neurosciences @IU_Health. @AANmember Sports Section Chair. Former @KerlanJobe Fellow.

[LinksGems @LinksGems]

On the heels of a magnificent U.S. Amateur at Merion, I’ve gotten numerous requests for next year’s venue, the venerable Oak Hill Country Club.

Stroke play qualifying rounds will take place on both the East and West courses (both by Donald Ross), while the 6 rounds of match play will be held on the tougher East.

[John Shaffer @trapperjohn_md]

@DrDiGiorgio We have a reliable serum study for this now. Serum studies are one of the four pillars of the new CBI-M framework for classifying TBI.

https://t.co/utCkxebVJk

[John Shaffer @trapperjohn_md]

@iuneurology Congratulations!

[Mike Greenberg @Espngreeny]

This story is now more than 25 years old and I have told it more times than I can count, but it hits very differently today.

I was anchoring SportsCenter one afternoon and Lou Holtz was on the show. I was quite excited to talk with him, he had been an icon all of my life.

He was very friendly, asking me all about myself as we walked toward the studio to record an interview. I told him: “Actually, Coach, it’s quite exciting, my wife and I are expecting our first child in the next few weeks.”

He stopped dead in his tracks and put a finger up near my face. And I’ll never forget what he said.

“Young man, the most important thing you can do for a child is make sure every day they know how much you love their mother.”

And, just like that, he started walking again.

Our daughter was born a month later, our son came two years after that. And I have thought about what Lou Holtz said to me that day about a million times since.

RIP Coach, thanks for the best advice anyone ever gave me.

[John Shaffer @trapperjohn_md]

@DrBryanSaltzman @IndyEleven Congratulations!

[Governor Mike Braun @GovBraun]

Never daunted, Coach Curt Cignetti represented the state of Indiana on the national stage and showed the world that the Hoosier values of grit, perseverance, and no-excuses hard work are the way to victory. I’m honoring Coach Cignetti with the Sachem Award, Indiana’s highest honor, and awarding the whole championship @IndianaFootball team with the Sagamore of the Wabash to celebrate their historic achievement for our state.

[John Shaffer @trapperjohn_md]

@gott31 @gott31 amazing

[John Shaffer @trapperjohn_md]

@nataliecignetti huge congratulations to your entire family! Go Hoosiers!

[Jeremy Gray @IUJGray]

It’s one of the greatest resumes for a college football team ever.

[Michael Okun @MichaelOkun]

Non-invasive brain stimulation is stepping up to be part of the future of neurology. Non-invasive brain stimulation refers to techniques that gently change brain activity from outside the head without surgery. Rektorová and colleagues describe in a new paper in Nature Reviews Neurology how non-invasive brain stimulation is being used today, and where it may be headed.
Key Points:
- Techniques like rTMS and tES can influence brain networks involved in movement, thinking and recovery.
- Results across conditions such as Parkinson’s disease, Alzheimer’s disease, stroke and traumatic brain injury are promising, however inconsistent.
- Future advances point toward personalized, network guided and closed loop stimulation approaches.
My take: This review captures where we are and where we need to go. Non-invasive stimulation is not magic; however it may become far more powerful when we match the right target to the right brain and at the right time. Also, if we can reach deeper into the brain w/ the innovation of newer tools this could be a game-changer. Here are 5 points that resonated w/ me: 1- These tools aim to nudge brain networks, rather than replace damaged circuits. 2- Benefits so far are real for some folks, however results vary widely between individuals. 3- Personalizing stimulation based on brain networks may unlock stronger and more reliable effects. 4- New approaches may reach deeper brain areas without surgery, which is exciting for conditions like Parkinson’s and depression. 5- The future likely blends stimulation w/ biomarkers, imaging and timing and these changes will hopefully better support recovery and function.
https://t.co/Us8k1YedII
@ParkinsonDotOrg @FixelInstitute @SfNtweets @movedisorder @Nature

[John Shaffer @trapperjohn_md]

Congratulations @MattWilsonDPP!

[FootballScoop @FootballScoop]

The 2025 FootballScoop General Manager of the Year is @MattWilsonDPP of @IndianaFootball https://t.co/eAk13Jo6l5

[John Shaffer @trapperjohn_md]

Congratulations @owingsderek!

[FootballScoop @FootballScoop]

Prior winners selected @owingsderek of @IndianaFootball 2025 Strength & Conditioning Coach of the Year https://t.co/5U32fR7cun

[Eric Cressey @EricCressey]

The big leagues are LOADED with late bloomers. Long-term athletic development takes time and patience.

[Eric Topol @EricTopol]

What does it take to achieve the highest level of human performance? Across athletics, science, chess, and music
@ScienceMagazine
https://t.co/e9EFbJyXQ5

[SportsCenter @SportsCenter]

THE FLIPPIN' HEISMAN 🏆

[#6/5 (4-0) RESPECTABLE ‘S’ POSSESSOR. #Beatrutger @B89Adam]

The #iufb strength staff continues to dominate.

(From Derek Owings on Instagram)

#NeverDaunted

[Big Ten Network @BigTenNetwork]

"Best drive I've ever been a part of, best play that I've ever made in my life."

The Journey relives 𝘛𝘩𝘦 𝘊𝘢𝘵𝘤𝘩 with @IndianaFootball WR Omar Cooper Jr. 👇

📍 @AutoOwnersIns

[John Shaffer @trapperjohn_md]

Philosophical parallels between @CCignettiIU and Napoleon #iufb

Great events ever depend but upon a single hair/The adroit man profits by everything, neglects nothing which can increase his chances/the less adroit, by sometimes disregarding a single chance, fails in everything

[John Shaffer @trapperjohn_md]

@mcuban — Thank you for your endeavors with Cost Plus Drugs and your many contributions to @IUBloomington @IUHoosiers!

[Top 100 Golf Courses @top100golf]

The best college golf courses in America! 🇺🇸 ⛳