AI can write the essay, calculate the answer, summarize the book, and solve the problem before you have really had to think. Jim Kwik's concern is not just cognitive offloading. It's cognitive surrender. After 34 years teaching people how to learn, remember, read, and focus, he believes the real risk of AI is that technology starts doing so much of the mental work that we stop building the abilities we need most.

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Keith Rabois has built companies, backed some of Silicon Valley's biggest successes, and earned a reputation as one of the sharpest strategic minds in venture capital. But when Louisa sat down with him, they barely spoke about investing. Instead, they explored the system behind his decision-making: the daily habits he believes keep his brain performing at an elite level. From treating himself like a professional athlete to measuring every workout for more than two decades, Rabois argues that the strongest predictor of longevity isn't genetics or supplements, it's VO₂ max.

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Ask most people what a brain chip does and they will tell you it reads your mind. Dr. Michael Lawton implants these devices, and he says that is not what comes off them. He is President and CEO of Barrow Neurological Institute in Phoenix, the hospital where Neuralink's first human implant was performed, and he has completed more than 10,000 brain operations and clipped around 5,500 aneurysms. Louisa sat down with him inside Barrow to find out what the electrodes actually pick up, how far the technology has come, and where it stops.

He walks through the surgery itself. The device goes into the hand knob, one small lobule of the motor cortex, where 64 electrodes have already become 108. The threads carrying them are about a tenth the thickness of a hair, so a robot inserts them while avoiding every arteriole on the surface. You'll hear what Nolan Arbaugh, Neuralink's first patient, can now do with a cursor at world record speed, and why Lawton can't keep up with him in a head to head. Then the correction. The data coming off these electrodes is a train of spikes, the same electrical language every neuron in your head is already using, and decoding it tells you whether a person meant to move a cursor left or right. Reading an emotion, or what someone thinks of you, is nowhere close.

The second half turns to the brain Lawton has spent 29 years operating inside. He describes cooling a patient to 15 degrees Celsius and stopping their circulation completely, which shrivels a giant aneurysm like a raisin and opens a short window to repair it. He explains why the hardest cases will still need a pair of human hands, and what he tells trainees who think their craft is disappearing. On brain aging he is direct about what works. He predicts alcohol will be viewed in 20 years the way cigarettes were viewed in the 60s, he takes zero supplements and no peptides, and he says exactly what he can and cannot see when he looks at a living brain on the table.

You'll also hear about Barrow's Mindgenuity Labs and its six mysteries of the mind, why he ranks movement as the first one to fall and consciousness as the one that may never be solved, what he believes consciousness physically is inside 86 billion neurons, and the ground underneath all of it. His sister died of a brain tumor. Louisa's father had a stroke in 2019. Both of them have watched this from the other side of the table.

*Reduce your risk of Alzheimer's with my science-backed protocol for women 30+:* https://go.neuroathletics.com.au/youtube-sales-page

Subscribe to The Neuro Experience for evidence-based conversations at the intersection of brain science, longevity, and performance.

_____

*TOPICS DISCUSSED*

00:00 Intro: The Brain Surgeon at Neuralink's First Hospital

00:39 The Guy Who Does the Cases Nobody Else Wants

02:17 A Day in the Life: 5:30am Starts and Three Surgeries

03:20 "Game Tape": Reviewing Every Operation Like an Athlete

04:24 The Surgeon Athlete and Why Surgery Is a Physical Skill

05:32 Fifty Years From Now: What Happens to Neurosurgery

06:11 The ROSA Robot and Mapping a Seizure Focus

08:16 Deep Brain Stimulation and Hitting an Exact Target

08:52 Will We All Be Operated On by Robots?

10:02 The Brain AVM: The One Case a Robot Can't Take

11:18 Why Bleeding Breaks a Robot: The Waymo Problem

13:15 What a Brain-Computer Interface Actually Does

14:49 The Hand Knob: 108 Electrodes in One Small Spot

15:50 Cursor Control at World Record Speed

16:31 Inside the Implant: Threads a Tenth the Width of a Hair

17:27 "No, the Chip Cannot Read Your Thoughts"

17:58 What the Device Really Reads: A Train of Spikes

19:18 From Movement to Sensation: What Comes Next

19:48 Why Restoring Sight Is So Much Harder

20:58 The 1943 Paper That Predicted All of This

22:37 Elon, Telepathy, and What's Actually Possible

23:00 Boosting Creativity and Intelligence in 50 Years

25:10 "When I Retire, We'll Be Treating Depression and Addiction"

26:04 Alzheimer's: Light Therapy and the Blood-Brain Barrier

27:11 Treating the Disease vs Preventing It

28:25 10,000 Operations: How He Feels About Robots Taking Over

29:54 Neuroplasticity: How Nolan's Brain Learned the Device

31:34 What Actually Changes at the Neuron Level

32:04 Patient Two and the Robotic Arm

32:42 5,500 Aneurysms: The Cases That Stay With Him

33:16 Cardiac Standstill: Cooling a Brain to 15 Degrees

35:46 What Separates a Great Surgeon From an Average One

36:17 Traits of Greatness: The Formula Nobody Has Cracked

37:21 The Phone Call in the Middle of a 16-Hour Surgery

39:35 "I Must Have Been Born for This"

41:26 Can You Tell How Old a Brain Is Just by Looking?

43:12 Why Alzheimer's Is Invisible in a Living Brain

44:14 What a Neurosurgeon Does to Protect His Own Brain

44:40 "Alcohol Will Be Viewed Like Cigarettes in the 60s"

45:13 Peptides, Injectables, and Zero Supplements

46:52 The Last Generation to Operate With Open Hands

48:10 How Louisa Found Him on Twitter in 2021

48:53 The Six Mysteries of the Mind

49:14 Which One Gets Solved First, and Which May Never

50:03 Is Consciousness in the Tissue?

51:39 Memory: The Circuitry We Still Can't Explain

53:18 Why Consciousness Is Harder Than Memory

55:12 Louisa's Father's Stroke

56:02 Advice for Anyone Watching a Parent Decline

56:21 His Sister's Brain Tumor and How He Carries It

57:38 A World Where Stroke Is an Outpatient Repair

58:40 Forty Years On, Finally at the Dawn

_______

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_______

I'm Louisa Nicola - clinical neurophysiologist - Alzheimer's prevention specialist - founder of Neuro Athletics.

My mission is to translate cutting-edge neuroscience into actionable strategies for cognitive longevity, peak performance, and brain disease prevention. If you're committed to optimizing your brain- reducing Alzheimer's risk - and staying mentally sharp for life, you're in the right place.

Stay sharp. Stay informed. Join thousands who subscribe to the Neuro Athletics Newsletter → https://bit.ly/3ewI5P0

Instagram: https://www.instagram.com/louisanicola_/

Twitter : https://twitter.com/louisanicola_

Learn more about your ad choices. Visit megaphone.fm/adchoices

Ask most people what a brain chip does and they will tell you it reads your mind. Dr. Michael Lawton implants these devices, and he says that is not what comes off them. He is President and CEO of Barrow Neurological Institute in Phoenix, the hospital where Neuralink's first human implant was performed, and he has completed more than 10,000 brain operations and clipped around 5,500 aneurysms. Louisa sat down with him inside Barrow to find out what the electrodes actually pick up, how far the technology has come, and where it stops.

Learn more about your ad choices. Visit megaphone.fm/adchoices

Two out of three Alzheimer's patients are women, and for decades that gap was written off as a side effect of living longer. The newer neuroscience tells a more specific story: menopause is not a reproductive event, it's a neurological one, and the pathology begins 20 to 30 years before the first symptom. In this episode, Louisa breaks down why the female brain loses its primary protection around 40, what actually drives the disease, and the seven evidence-based protections that can change the trajectory.

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Six days before he sat down for this conversation, he ran a marathon. Then he explained what the race did to his brain. When you run 26 miles and your glycogen runs out, your brain still needs energy, so it starts stripping the fatty myelin off its own neurons and burning it for fuel. MRI scans caught a 20% drop in myelin up to two months after a marathon, and cognitive testing showed real impairment for about a month. In this episode, Louisa sits down with Brady Holmer, exercise physiologist, 2:24 marathoner, and author of VO2 Max Essentials, for one of the most practical conversations on aerobic fitness, brain health, and longevity the show has recorded.

They cover why "marathon brain" is real but temporary, the menopause parallel where a starved brain catabolizes its own white matter, and whether pre-loading ketones or omega-3s can protect your myelin through a hard endurance effort. Then Brady breaks down VO2 max the way almost nobody does: not as a heart-and-lung number, but as a five-step oxygen cascade running from your lungs to your mitochondria, and why the bottleneck moves from your heart to your muscles as you age. You will learn the exact VO2 max floor below which everything becomes a maximal effort, the "50 at 50" target, and why women should aim for 40 to 50.

Brady also lays out how the brain itself gates your fitness through myokine signaling, why the one to two hours after training may matter more than sleep for adaptation, and the truth about "non-responders" and the IGF binding protein biology behind trainability. Then the protocols: why the Norwegian 4x4 beats Tabata for VO2 max, how sauna and post-exercise ketones amplify the same session, why sleep consistency beats sleep duration, and the single weekly workout Brady says everyone should be doing for both VO2 max and brain health over the next decade.

Reduce your risk of Alzheimer's with my science-backed protocol for women 30+: https://go.neuroathletics.com.au/youtube-sales-page

Subscribe to The Neuro Experience for evidence-based conversations at the intersection of brain science, longevity, and performance.

TOPICS DISCUSSED

00:00 Intro: Marathon Brain and the Number That Predicts How Long You Live

00:40 Does Running a Marathon Really Damage Your Brain?

01:04 The Study: 20% Myelin Loss on MRI After a Marathon

02:16 Impaired Cognition for a Month, Then Full Recovery

03:28 Why It Happens: The Brain Burns Its Own Myelin for Fuel

04:44 The Menopause Parallel: Brain Glucose Starvation and White Matter

05:57 Can Ketones and BHB Protect the Brain During a Marathon?

06:42 How Marathon Runners Should Fuel to Protect Cognition

08:22 VO2 Max: The Strongest Predictor of Mortality and Longevity

09:00 The Oxygen Cascade: What VO2 Max Actually Measures

11:08 Why VO2 Max Matters More As You Age

12:10 The VO2 Max Floor for Frailty and Daily Living

13:11 VO2 Max as a Brain Metric: Averages by Age and Sex

14:20 The "50 at 50" Target and What Women Should Aim For

15:09 The Female Masters Athlete Study and the VO2 Max Bank Account

16:01 How Your Brain Knows It Is Getting Fitter: Myokines

17:41 Mouse Studies: Block the Brain Signal, Lose the Adaptation

18:37 The Post-Workout Recovery Window That Drives Adaptation

19:53 What Kind of Rest Actually Works After Training

20:50 KetoneIQ: Clean Fuel for the Brain

21:50 Qualia Magnesium: Recovery and Deep Sleep

22:45 The Mission: Why Science Is the New Breaking News

27:25 Attacking VO2 Max From a Different Angle: What Is Your Bottleneck?

28:06 Central vs Peripheral: Heart, Muscle, and Mitochondria

30:20 Spotting Mitochondrial Dysfunction With a Simple Lactate Test

33:18 Training Each Link in the Oxygen Cascade

34:41 Targeting the Lungs: Inspiratory Muscle Training

36:19 Iron, Hemoglobin, and Heat as an Altitude Mimic

38:56 Exercise Hemolysis: Why Runners Break Down Red Blood Cells

39:59 Why Investors and CEOs Are Chasing VO2 Max

40:42 What Is Good for the Heart Is Good for the Brain

42:02 Exercise Snacks vs Deliberate Training as You Age

44:41 HIIT for Stroke Volume: Why the Norwegian 4x4 Works

45:43 4x4 vs Tabata and the 2 to 8 Minute Interval Sweet Spot

46:57 Using Heart Rate and Exertion to Train VO2 Max

48:02 Where AI Is Entering Endurance Coaching

49:14 Timeline Mitopure: Powering Your Mitochondria

50:16 Cozy Earth: Better Bedding, Better Sleep

51:04 Responders vs Non-Responders and the IGFBP Biology

55:35 How to Amplify Adaptation From the Same Training Load

56:39 Heat, Post-Exercise Ketones, and Getting the Basics Right

58:14 Sleep Consistency Beats Sleep Duration

01:00:24 The One Weekly Workout for VO2 Max and Brain Health

Thank you to our sponsors

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I’m Louisa Nicola - clinical neurophysiologist - Alzheimer’s prevention specialist - founder of Neuro Athletics.

My mission is to translate cutting-edge neuroscience into actionable strategies for cognitive longevity, peak performance, and brain disease prevention. If you're committed to optimizing your brain- reducing Alzheimer’s risk - and staying mentally sharp for life, you’re in the right place.

Stay sharp. Stay informed. Join thousands who subscribe to the Neuro Athletics Newsletter → https://bit.ly/3ewI5P0 

Instagram: https://www.instagram.com/louisanicola_/ 

Twitter : https://twitter.com/louisanicola_

Learn more about your ad choices. Visit megaphone.fm/adchoices

"Everyone gets cancer five times a day — your body already knows how to take care of it."

00:00 – Cold open: bold claims & who is Sam Bertram

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Fifty years ago the U.S. government classified it alongside heroin: no accepted medical use, high potential for abuse, illegal in most of the world. The peer-reviewed data now coming out of Johns Hopkins, Imperial College, and Nature tells a different story, one that has some of the most credentialled neuroscientists alive rethinking how the brain heals. In this episode, Louisa breaks down exactly what psilocybin does to your neurons, why it works where antidepressants stall for decades, and where the research is heading right now.

Fifty years ago the U.S. government classified it alongside heroin: no accepted medical use, high potential for abuse, illegal in most of the world. The peer-reviewed data now coming out of Johns Hopkins, Imperial College, and Nature tells a different story, one that has some of the most credentialled neuroscientists alive rethinking how the brain heals. In this episode, Louisa breaks down exactly what psilocybin does to your neurons, why it works where antidepressants stall for decades, and where the research is heading right now.

Learn more about your ad choices. Visit megaphone.fm/adchoices

He carried two copies of ApoE4, the highest genetic risk factor for Alzheimer's disease, went through medical school knowing exactly what his LDL of 700 meant, decided the experts were wrong, and then published the case report to prove it. In this episode, Louisa sits down with Dr. Nick Norwitz, PhD researcher and metabolic scientist, for one of the most scientifically dense conversations on brain health, cholesterol biology, and Alzheimer's prevention ever recorded on this show.

They cover why the phospholipid form of DHA reaches the brain more effectively than standard fish oil, how ApoE4 carriers burn through omega-3s differently and what to do about it, the lithium orotate data that sold out supplement shelves worldwide, and why GSK-3 beta, the enzyme that phosphorylates tau, may be the most under appreciated target in Alzheimer's research today.

Then Dr. Nick Norwitz lays out the case that challenges the "LDL is always the enemy" consensus: why metabolically healthy individuals may not benefit from aggressive lipid-lowering therapy, what his viral coronary CT angiogram showed after seven years of 700+ cholesterol, why the EZPAVE trial headlines don't hold up under scrutiny, and what GLP-1s are doing inside the brain completely independent of weight loss. You'll also hear about the sardine diet experiment, the omega-3 thermogenesis connection, ketones as misfolded protein clearance agents, creatine for depression, retatrutide and PCSK9, BPC-157 risks, and what Dr. Nick Norwitz believes is coming in Alzheimer's gene therapy within the next decade.

*Reduce your risk of Alzheimer's with my science-backed protocol for women 30+:*
https://go.neuroathletics.com.au/youtube-sales-page

Subscribe to The Neuro Experience for evidence-based conversations at the intersection of brain science, longevity, and performance.

_____

*TOPICS DISCUSSED*
(00:00:00) Intro: The ApoE4 Paradox and the Case Report That Broke the Internet

_______

*Thank you to our sponsors*
Fenix Health Science: fenixhealthscience.com Use code NEUROEXP
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_______

I’m Louisa Nicola - clinical neurophysiologist - Alzheimer’s prevention specialist - founder of Neuro Athletics.

My mission is to translate cutting-edge neuroscience into actionable strategies for cognitive longevity, peak performance, and brain disease prevention.
If you're committed to optimizing your brain- reducing Alzheimer’s risk - and staying mentally sharp for life, you’re in the right place.

Stay sharp. Stay informed. Join thousands who subscribe to the Neuro Athletics Newsletter → https://bit.ly/3ewI5P0
Instagram: https://www.instagram.com/louisanicola_/
Twitter : https://twitter.com/louisanicola_

Learn more about your ad choices. Visit megaphone.fm/adchoices

He carried two copies of ApoE4, the highest genetic risk factor for Alzheimer's disease, went through medical school knowing exactly what his LDL of 700 meant, decided the experts were wrong, and then published the case report to prove it. In this episode, Louisa sits down with Dr. Nick Norwitz, PhD researcher and metabolic scientist, for one of the most scientifically dense conversations on brain health, cholesterol biology, and Alzheimer's prevention ever recorded on this show. They cover why the phospholipid form of DHA reaches the brain more effectively than standard fish oil, how ApoE4 carriers burn through omega-3s differently and what to do about it, the lithium orotate data that sold out supplement shelves worldwide, and why GSK-3 beta, the enzyme that phosphorylates tau, may be the most under appreciated target in Alzheimer's research today.

Reduce your risk of Alzheimer's with my science-backed protocol for women 30+:https://go.neuroathletics.com.au/youtube-sales-page

Fenix Health Science: fenixhealthscience.com Use code NEUROEXP

Learn more about your ad choices. Visit megaphone.fm/adchoices