Better Brain Fitness (a Brainjo Production)

Josh Turknett, MD

Podcast

Episodes

Latest Episodes

Are Microplastics Causing Dementia?

11/4/2025 • 38 min

You may have heard the alarming headline about a recent study that showed the typical brain had about a teaspoon of microplastics inside of it. And that amount appears to be increasing each year. In equally alarming fashion, that same study also revealed that those with dementia had over 5 times the amount of plastic in their brains as those without. Needless … Play episode

Hacking the Brain: TMS, Brain-to-Brain Communication, and Predicting Your …
Why Your Brain Needs Friends, with guest Dr. Ben Rein
#85: Unpacking the surprising results from the POINTER trial
#84: Dr. Tommy Wood's Exciting Announcement!
#83: How To Thrive In An Always On World, with Dr. James Hewitt
#82: Why Your Brain Is (Perfectly) Weird: Understanding Individual Differe…
#81: Your Brain on Caffeine: the REAL story
#80: Statins, Cholesterol, and Brain Health: Our Unfiltered Take
#79: Does Red Light Therapy Boost Brain Health?
#78: What's More Important For The Brain: Diet or Exercise?
#77: Why Does Sleep Quality Decline as We Age (and what can we do about it…
#76: Can the Brain Heal Itself After Years of Poor Sleep Habits?
#75: Can a Long Layoff Really Boost Your Performance?
#74: Can We Train Our Brain To Improve Focus?
#73: Democratizing Health Optimization with AI: A conversation with Dr. Ja…
#72: Hormone Replacement Therapy: A Secret Weapon Against Dementia?
#71: What's really happening with scientific research funding?
#70: Why Anyone Can (and should!) Play Music
#69: How to recover from loss of smell and boost cognitive function
#68: A Scalable Solution For Alzheimer's Prevention
#67: Can You Improve Your Brain's Processing Speed?
#66: Does a tremor raise your risk of dementia?
#65: Tommy's TV Adventure, and how is social media affecting our brain?
#64: Can Hypertension Meds Really Reduce Dementia Risk?
#63: Can You Learn More By Napping???
#62: Can Brief Heart Rate Peaks Still Boost Brain Health?
#61: Why Is Tommy Doing Sauna & Cold Plunges?? ("ask us anything" excerpt)
#60: How To Stay In Shape When You're Injured
#59: Can The Brain Recover After Stroke?
#58: Can The Brain Recover From Years Of Heavy Drinking?
#57: Can Fasting Sharpen Your Mind?
#56: Does High Intensity Interval Training Have Unique Brain Benefits?
#55: Is ADHD a barrier to learning music?
#54: New Findings on APOE4: Should We Be Worried?
#53: Change Your Diet, Change Your Mind: A conversation with Dr. Georgia E…
#52: Can You Increase Neuroplasticity As You Age?
#51: How To Harness Plasticity for Mental Health, with Nicole Vignola
50: Can a driver in their 40s win a Formula 1 championship?
49: Can Testosterone Replacement Boost Brain Health and Cognitive Function?
48: How To Improve Mental Health With Lifestyle Changes.
47: How to reduce the risk of dementia from concussion and TBI?
46: How Do I Know if a Ketogenic Diet Safe for Me?
45: Are Trump And Biden Mentally Fit For Office? The Brain Docs Weigh In.
44: Can "The Little Blue Pill" Help Prevent Alzheimer's?
43: Do cold sores cause Alzheimer's?
42: What blood tests should you monitor for brain health?
41: Is It Harder To Learn A Language As An Adult?
40: Can Specific Exercises Boost Cognitive Performance?
39: What does Dr. T's brain fitness program look like?

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