Improve Your Child’s Mental Health and Academic Performance!

Results  This study included 5515 adolescent participants (2640 [47.9%] female; mean [SD] age 11.93 [0.65] years) using step counters. Higher step count was associated with lower total mental health problems (B [SE], −0.080 [0.015]; t = −5.497; P < .001) and greater cortical thickness in the paracentral (B [SE], 0.057 [0.016]; t = 3.621; P < .001) and rostral anterior cingulate (B[SE], 0.052 [0.016]; t = 3.319; P = .001) regions. Further analyses showed a significant dose-response association, with progressively lower mental health problems across higher step categories compared with the under 5000-step group. Mediation analyses revealed that greater paracentral thickness statistically mediated the association between higher daily step count and fewer mental health problems 1 year later.

Conclusions and Relevance  In this cohort study, higher daily step counts were associated with structural differences in the brains of adolescents, which were in turn associated with better mental outcomes prospectively. Beneficial associations for mental health appeared to accrue continuously across the observed range, with no evidence of a threshold or plateau, highlighting that every step counts and the potential value of promoting daily steps in adolescents. https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2854698

Li Q, Paluch A, Rakesh D. Physical Activity and Adolescent Brain Structure, Mental Health, and Academic Outcomes. JAMA Netw Open. 2026;9(10):e2636973. doi:10.1001/jamanetworkopen.2026.36973

Greater cortical thickness too!

WOOHOO.

I Hope My Perivascular Fat Attenuation Index (FAI) Score is Low

New research continues to affirm the prognostic utility of the coronary computed tomography angiography (CCTA)-derived perivascular fat attenuation index (FAI) score in assessing cardiovascular risks for patients without common risk factors such as smoking history, obesity, hypertension and diabetes. What CCTA-Based AI Detection of Coronary Inflammation May Reveal About Patients with No Traditional CV Risk Factors – https://www.diagnosticimaging.com/view/ccta-based-ai-detection-coronary-inflammation-patients-with-no-traditional-cv-risk-factors

Image Source: The Coronary Artery Inflammation Controversy – https://erictopol.substack.com/p/the-coronary-artery-inflammation

Dr. Topel has an extensive analysis of this new diagnostic tool.

But I’m pretty sure the $49.00 heart scan at https://www.okheart.com/services/heartview-ct-heart-scan/ won’t tell me my FAI score.

Resistance is NOT Futile (in DM risk)

In this prospective cohort study, resistance training among US adult health care professionals was associated with substantially lower T2D risk, particularly when performed consistently over midlife and combined with adequate aerobic activity and limited sedentary television viewing. These findings support the inclusion of resistance training as a key component of lifestyle recommendations for diabetes prevention. Long-Term Resistance Training and Risk of Type 2 Diabetes – https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2850563

Not Everyone Gets Lucky

My interviews with Howard Marks, Chairman of Oaktree Capital, and famed for his “Chairman’s Memos,” were instructive.1 The first time he mentioned his good fortune, I pushed back, asking, “What about intelligence, hard work, and perseverance?”

His answer:

“Everybody in my MBA class at the University of Chicago was very smart and very hard working. But hard work and intelligence are mere table stakes. Not everybody has fortune smile on them; not everybody gets lucky.”


Serendipity: The Role of Luck in Your Life and Career – https://ritholtz.com/2026/06/recognize-the-role-of-luck-in-your-life-and-career/

The older you get you do develop a better understanding of luck and random events. Interesting article.

Not everyone gets lucky.

Study Failure to Learn Success

Michael Girdley on private equity:

The lesson is pretty straightforward. You’re going to go buy a business, and you’re going to look and say, “Where can I cut costs? How can I start to optimize and streamline this?” You can cut fat, but you definitely don’t want to cut muscle, and you don’t want to cut bone. That’s exactly what these guys did. Why did they do that? They’re private equity guys. They get paid on management fees and the deals when they turn around and put them out in the public. They don’t care about the long term. They care about the next three to five years, and that’s exactly what they optimized for.

Peptides Explained

Your Local Epidemiologist (YLE) is founded and operated by Dr. Katelyn Jetelina, MPH PhD—an epidemiologist, wife, and mom of two little girls.

The people currently using these compounds are, in effect, running an uncontrolled experiment on themselves. Peptides, explained: Answers to your top questions – https://yourlocalepidemiologist.substack.com/p/peptides-explained-answers-to-your?

An uncontrolled experiment on themselves.

Yikes.

Alarmingly Shallow Ideas

As one New York financier told Financial Times journalist Gillian Tett, new hires who were seen as “AI natives” are turning out to have alarmingly shallow ideas. So much so, the anonymous finance worker admitted, that his firm now actively avoids seeking out AI-literate STEM graduates, and opts to comb through humanities students instead…

The state of higher education is so bad that many of today’s higher ed students are not only offloading their coursework to AI chatbots like ChatGPT — a shortcut, educators say, that’s even impacting their ability to participate in face-to-face discussions. Bosses Horrified as “AI Native” College Graduates Hit the Workplace – https://futurism.com/future-society/college-critical-thinking-ai

Yikes.

Deeply disturbing. So what can a concerned parent do?

Ask ChatGPT what to do!

My college graduate son has no critical thinking skills after relying upon ChatGPT. What should I do?

Treat this as a skills-and-habits problem, not a character flaw or a “ChatGPT ruined him” problem. A lot of recent graduates learned to use AI as a shortcut before they learned how to think through ambiguity on their own. The good news is that critical thinking is trainable.

A few things matter here:

  1. Don’t turn this into a fight about technology
  2. Separate competence from confidence
  3. Create situations where he has to reason, decide, and defend conclusions

What often happens is:

  • Students get very good at producing polished answers
  • But weak at:
    • evaluating evidence
    • making tradeoffs
    • spotting bad assumptions
    • persisting through confusion
    • forming independent judgment

Those are different skills.

Here’s what tends to work better than lectures about “kids relying on AI.”

Change how he uses AI

The goal is not “stop using ChatGPT.” It’s “use it as a sparring partner instead of a vending machine.”

Encourage rules like:

  • No copying answers directly
  • He must form an opinion first
  • He must explain why an answer is correct
  • He must ask AI to critique his reasoning instead of replacing it

Good prompts:

  • “Challenge my assumptions.”
  • “What are the strongest counterarguments?”
  • “What evidence would disprove this?”
  • “What am I overlooking?”
  • “Give me three competing interpretations.”

Bad pattern:

  • “Write this for me.”

Put him in environments that punish shallow thinking

Critical thinking develops fastest when reality pushes back.

Good environments:

  • Jobs with responsibility and consequences
  • Sales
  • Operations
  • Managing projects
  • Technical troubleshooting
  • Apprenticeships
  • Debate-heavy workplaces
  • Entrepreneurship
  • Volunteer leadership

Real-world feedback is hard to fake.

Ask questions instead of giving conclusions

If you immediately correct him, he stays mentally passive.

Instead ask:

  • “How did you arrive at that?”
  • “What evidence supports it?”
  • “What would change your mind?”
  • “What’s the downside of your approach?”
  • “What assumption are you making?”

That forces metacognition.

Make him defend positions he disagrees with

One of the fastest ways to build reasoning is:

  • argue both sides
  • compare tradeoffs
  • steelman opposing views

You can do this casually over dinner or current events.

Encourage slow thinking

A lot of AI-heavy habits create intellectual impatience.

Critical thinking often requires:

  • sitting with uncertainty
  • reading longer material
  • comparing sources
  • wrestling with incomplete information

Books, long-form journalism, analytical podcasts, and difficult projects help rebuild that stamina.

Watch for learned helplessness

Sometimes the issue is not inability but reflexive dependence:

  • “I don’t know immediately”
    → “I need AI to think for me”

A useful rule:

  • Spend 15–30 minutes thinking independently before asking AI.

Also be realistic about the transition to adulthood

Many graduates — long before AI existed — left college without strong judgment skills. Those usually develop through:

  • responsibility
  • mistakes
  • work
  • relationships
  • financial pressure
  • repeated decision-making

You do not need to panic because he’s behind in one area at graduation.

The biggest mistake parents make here is trying to “convince” an adult child that he lacks critical thinking. That usually triggers defensiveness and dependency at the same time.

A better posture is:

  • respect him as an adult
  • expect reasoning and accountability
  • ask probing questions
  • stop rescuing poor decisions too quickly
  • encourage environments that require independent judgment

If you want, I can also help you with:

  • signs that this is normal vs genuinely concerning
  • exercises that rebuild critical thinking quickly
  • how to talk to him without sounding accusatory
  • ways young professionals can use AI without weakening reasoning skills

GLP-1s (it’s kind of a mess)

“But the real question is what is the quality of the weight regain and what is the shift in people’s metabolism, and it seems to be very bad,” she said. “Ongoing studies that haven’t been published yet suggest that hypertension comes back. All the inflammatory markers come back, and lipids go up. And if you have diabetes, it gets worse. Overall, it’s kind of a mess…As these studies and others showed, most people regain the weight. Whether or not they regain all the weight depends in part on diabetes and insulin and many other factors, but people will likely regain most of their weight.”

“But the message isn’t that you regain the weight. The message is that you may be less healthy when you regain the weight. That’s why we need to couple the drugs with lifestyle interventions. And it’s why people who just want to lose 5 or 10 pounds really need to consider that lifestyle change, hard as it is, is the better way to do it.”

Anne Peters, MD, professor Keck School of Medicine of the University of Southern California

Less Weight Regain, More Health Loss after Stopping GLP-1s? – Medscape – March 05, 2026 – https://www.medscape.com/viewarticle/less-weight-regain-more-health-loss-after-stopping-glp-1s-2026a10006rv?

I never envisioned developing an obsession with pharmaceuticals. And after many years of endless blogging into the void I learned I could link to previous posts like this: https://lifeunderwriter.net/tag/glp-1-receptor-agonist/

The learning never stops.