Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.

Wednesday, May 27, 2026

The Bare Minimum You Need to Do to Add a Year to Your Life

  Is your doctor competent enough to get the dietician to incorporate these into the diet protocol at the hospital and your take home diet protocol ? NO? So, your doctor failed at that task! What are YOU going to do about that incompetence? Let it pass? Or pay it forward and get someone competent in the hospital for the next stroke survivor?

Did your doctor also fail at getting you recovered enough to do these exercise amounts?

The Bare Minimum You Need to Do to Add a Year to Your Life

Sleeping, eating, and exercise are crucial to health — and improvements in any of those categories can have big impacts. Now we’re learning that minimal changes to all three can improve health better than focusing on just one area alone. 

That’s the takeaway from new work from Australian researchers that suggests strong synergistic effects. The research is among the first to calculate the effects of lifestyle changes in combination. Findings suggest that adding just 5 minutes of sleep, 2 minutes of moderate activity, and half a serving of vegetables a day can add a full year to your life. 

photo of Emmanuel Stamatakis, PhD
Emmanuel Stamatakis, PhD

“The central clinical message is that modest combined changes across three behaviors may matter more than trying to overhaul one behavior in isolation,” said Emmanuel Stamatakis, PhD, a professor of physical activity and population health at the University of Sydney and Monash University in Australia.

In 2025, Stamatakis gained notice with a Nature Communications paper that showed each dose of 60 seconds of daily vigorous exercise could add years to lifespan and reduce the risk for cardiometabolic disease and cancer.

Now, drawing from UK Biobank data, his team’s latest findings show a synergistic effect that “argues against an all-or-nothing approach,” Stamatakis said. “If a patient is struggling to make a large change in one area, it may still be worthwhile to pursue smaller gains across several domains at once.”

The Bare Minimum for Longer Life 

The researchers started from a low baseline, creating a composite score for diet, physical activity, and sleep for study participants in the fifth percentile. These people slept about 5.5 hours a night, logged 7.3 minutes of daily moderate activity, and received a diet quality score of 36 out of 100. From there, the researchers set out to find the bare minimum improvements needed to improve lifespan and healthspan.

Here are some conclusions, from the paper published in eClinicalMedicine:

  • The minimum: People who added 5 minutes of sleep, 2 minutes of at least moderate activity, and a small diet change such as a half serving of vegetables daily lived 1 year longer than those with the lowest baseline.
  • The optimum: Getting 7.2-8 hours of sleep, 43 minutes of moderate activity, and a high-quality diet (score, 57.5-72.5 out of 100) was linked to more than 9 years of additional healthspan and lifespan.
  • The synergy: The math shows that these changes multiply each other’s powers. For example, if you rely on sleep alone to add a year to your life, you need an extra 25 minutes a night. But if you combine it with 2 minutes of activity and half a serving of veggies, you need only 5 minutes of additional sleep to get that same extra year.

“What stood out most was how small the estimated combined changes were for a meaningful signal,” Stamatakis said. “We are used to lifestyle advice sounding large, difficult, and sometimes discouraging. Seeing that a few extra minutes of sleep, a couple of minutes of moderate-to-vigorous activity, and a modest diet improvement were associated with an extra year of lifespan was striking.” 

“Equally striking was that the combination mattered so much,” he said. “Scientifically, that reinforces the idea that everyday behaviors interact in the real world, and practically it suggests a more hopeful, less overwhelming message for patients and clinicians.”

The researchers published a separate analysis in the European Journal of Preventive Cardiology that showed similarly small synergistic changes in sleep, activity, and diet lowered the risk for major cardiovascular events.

Call It ‘Progress Over Perfection’ 

That mindset, plus the flexibility of making several small changes, can be important, said Meagan L. Grega, MD, a lifestyle and family medicine physician in Easton, Pennsylvania, and chief medical officer of the Kellyn Foundation, a healthy neighborhood nonprofit initiative that she co-founded. She serves on the governing board of the American Board of Lifestyle Medicine and wasn’t involved in the study.

photo of Meagan L. Grega, MD
Meagan L. Grega, MD

Increased moderate-to-vigorous physical activity, is the strongest driver of improvement in lifespan and healthspan, she said, noting dramatic lifespan gains for each 5 minutes daily. Adding improvements in sleep and nutrition could achieve similar benefits with lower amounts of moderate-to-vigorous physical activity — “a more flexible and attainable path for many patients.”

To coach your patients toward small changes, start by asking, “What matters most to you?” Grega suggests. It could be strength and vitality to stay active with the family, or protecting cognitive health. Choosing the behavior gives the patient autonomy and helps them access their internal motivation. 

From there, examine barriers and strategies, Grega said. Improving sleep might mean “creating a consistent wind-down routine or setting a reminder to transition toward bedtime,” she said. “Reviewing a typical day together can uncover opportunities for brief ‘exercise snacks,’ or short bursts of movement woven into existing routines.”

For diet, take a cue from the recent study and suggest adding half a serving of vegetables a day. That’s about one medium carrot, half a bell pepper, or 4 ounces of vegetable juice. 

Pohang Delivers World-Class Stroke Care, Not Seoul

 Any hospital that touts 'care' instead of publishing actual recovery statistics, IS A FAILED HOSPITAL, DON'T GO THERE!

Pohang Delivers World-Class Stroke Care, Not Seoul

Join us FREE for a live webinar focused on neuroplasticity, motor learning, and functional recovery June 15th at 8 pm EST Register Here In this free live webinar, you’ll learn how to intentionally drive brain reorganization through task specific, evidence-based interventions that improve movement, engagement, and long term outcomes across neurologic populations. Tapping Neuroplasticity to Enhance Neurological Recovery Monday June 15th 8 pm - 9 pm EST Save Your Seat For FREE Register today and start transforming the way you approach neurological rehab!   CUSTOMER SERVICE: Mon-Fri, 7AM-6PM Central Phone: (800) 433-9570 | Fax: (615) 376-8233 | Email Us | FAQs FOLLOW US: Facebook Instagram LinkedIn YouTube   © Summit Professional Education | 501 Union St Ste 545 PMB 626120, Nashville, TN 37219-1876 Unsubscribe | Manage Preferences

 Completely useless; they know ABSOLUTELY NOTHING THAT WILL GUARANTEE NEUROPLASTICITY!

You haven't identified the EXACT signals between neurons that tells one neuron to drop their use and take on a neighboring neuron's use! That could then make neuroplasticity repeatable on demand.  Until that occurs ALL OF THIS SUPPOSED NEUROPLASTICITY RESEARCH IS ALMOST COMPLETELY FUCKING USELESS! 

Tuesday, May 26, 2026

Managing your weight may keep your brain healthier for longer: Study

 

My doctor obviously knew nothing about weight gain post stroke. He didn't reference body metabolism slowing down after age 50 and my limited exercise ability which I used to do to excess allowing me to eat as I wanted. That incompetence led me to a 30 lb. weight gain which I'm still working to conquer. 

Managing your weight may keep your brain healthier for longer: Study

A Slight Tweak to Your Walking Routine Could Help Restore Your Body’s “Sixth Sense”(Proprioception) by 'Nice news'

 Did your competent? doctor give you ANYTHING TO RECOVER PROPRIOCEPTION? NO?  So, fucking incompetent then!

Walking’s ability to boost physical and mental well-being has been sung far and wide — but the activity comes with one health pro you may not have heard of. As we age or after an injury, our proprioception, aka our “sixth sense” that enables us to identify where our bodies are in space, declines. Walking on uneven surfaces such as grass or sand, however, can help train your proprioception in your lower body and improve your balance.

If your proprioception is impaired, you’re more susceptible to falling, as you can “get into a position where you need to catch yourself, but you don’t have the quickness to catch yourself,” physical therapist Claire Morrow told HuffPost. And if you don’t work on restoring this sense, it’s possible to lose it entirely.

But when you walk on slanted ground, you challenge your limbs to react to something new. Your proprioception kicks in, notifying your body that “the position of your joint is different and so it would activate muscles in a different way so that you don’t fall over to the right,” Morrow said.

Want to give it a try? Morrow advises starting on pressed dirt, then working up to sand and grass. If you’d like more stability, walk with hiking poles for extra support. And “if you don’t mind getting your feet dirty, then doing it barefoot is sometimes a fun way” to get into the habit too, she noted.

Scientists Discover Unexpected Reason Bananas May Not Belong in Smoothies

 Will your dietician be compensating so you get your potassium needs?

potassium (26 posts to April 2012)

Scientists Discover Unexpected Reason Bananas May Not Belong in Smoothies

“Use It or Lose It:” What This Popular Neurorehab Phrase Means by Flint Rehab

 

I absolutely hate these pontifications on nonuse. Solve the damn problem of dead brain rehab and this nonuse problem goes away. SOLVE THE CORRECT PROBLEM!

Damn it all, it is NOT learned nonuse. It is the actual inability to use it because of dead neurons. If you had dead brain rehab protocols, this fake learned nonuse idea would cease to exist!

A couple points I'd like to make on this:

1. I disagree on 'Use it or lose it' existing for stroke survivors. You can read all about my reasons for that in these 11 posts.

2. Exercising the dominant side increases recovery of the affected side. Post here:

Compensatory rehabilitation limits motor recovery after stroke

3. I consider this as a crutch for your stroke medical 'professionals' to blame you for not recovering just because THEY ARE COMPLETE FUCKING FAILURES AT PROVIDING 100% RECOVERY PROTOCOLS!

But I'm not medically trained so my points should not be listened to.  

The latest here:

“Use It or Lose It:” What This Popular Neurorehab Phrase Means

To help you understand this popular neurorehabilitation phrase, this article will discuss:

What “Use It or Lose It” Means           

To minimize losses after neurological injury, individuals must focus on promoting neuroplasticity to reorganize the central nervous system’s neural circuitry and restore compromised functions. One of the most effective ways to do this is to think “use it or lose it.” It simply means that in order to retain proficiency over a function, you must practice it regularly.

Every function you perform activates a unique set of neural pathways in the central nervous system (the brain and spinal cord). The most frequently activated neural pathways are strengthened and maintained, while those less frequently activated become neglected and forgotten.

This occurs because the central nervous system no longer senses a demand for those functions. Therefore, to be as efficient as possible and save energy for more in-demand functions, it will start to forget how to perform unused functions.

Consequently, prolonged disuse can lead to learned non-use, which refers to the conditioned suppression of affected body parts. For example, when the left arm is weakened by a stroke, individuals tend to compensate by using their unaffected right arm. Consistently using the unaffected arm leads to disuse of the affected arm until eventually, individuals forget how to use their affected arm.

The only way to prevent functions from worsening and becoming useless after a neurological injury is to use them. Repetitively practicing functions affected by neurological injury reinforces demand for them and encourages the central nervous system to reorganize those functions to unaffected regions of the brain/spinal cord. The more you practice affected functions, the stronger the newly rewired functions become.

Now that you understand what “use it or lose it” means, let’s discuss some other principles of neuroplasticity.

Other Principles of Neuroplasticity

While “use it or lose it” is one of the most popular principles of neuroplasticity, the other principles are equally as important to help you understand how to optimize recovery after neurological injury.

Other principles of neuroplasticity include:

  • Use it and improve it. In order to get better at a specific function, you must consistently practice it.
  • Specificity. The way you train impacts the nature of plasticity. For example, training specific hand movements will help improve hand function after stroke.
  • Repetition matters. To strengthen neural circuits for a function, you must repetitively practice that function.
  • Intensity matters. The intensity of your training impacts how quickly adaptive changes occur.
  • Time matters. Depending on how long it has been since your injury, you may experience different states of plasticity. For example, immediately after injury, the brain experiences a heightened state of plasticity. Therefore, individuals tend to see the most results in the first several months after their injury.
  • Salience matters. Your motivation to train impacts neuroplasticity. The more important training is to you, the easier it is for you to participate in it.
  • Age matters. Neuroplasticity occurs more readily in younger brains. However, the brain never runs out of neuroplasticity and there is hope for recovery at any age.
  • Transference. Promoting neuroplasticity within one set of neural pathways can promote neuroplasticity for similar behaviors. For example, practicing leg exercises can help improve your walking skills.
  • Interference. Learning compensation techniques can make it difficult to regain an affected skill.

As you can see, various factors impact how quickly neuroplasticity is activated in the central nervous system. Fortunately, the brain adapts throughout your entire life and even years after your injury, there is always hope for recovery.

Is It Possible to Regain Lost Functions?

man participating in physical therapy after neurological injury to promote "use it or lose it" recovery principle

While prolonged disuse of affected functions can lead to losing them, it is always possible to relearn them. Any function can be relearned; however, it will take time to re-establish neural pathways for it. In other words, you’ll likely have to start from the beginning to regain lost functions.

This can be achieved by focusing on consistent and repetitive practice. The more you practice, the more rewiring will occur and the stronger neural pathways for that function will become.

While the point of “use it or lose it” is to encourage you to use affected functions to avoid losing them, it is never too late to promote neuroplasticity and relearn them. Even if it has been years since you’ve used your affected body part, there is always hope for recovery.

Use It or Lose It: Key Points

Your brain is always adapting based on the behaviors you consistently perform. After a neurological injury, you may experience various impairments such as difficulties controlling your movements or poor memory.

In order to prevent these functions from worsening, think “use it or lose it.” The more you practice functions affected by neurological injury, the better the central nervous system will get at recognizing the demand for them and utilize neuroplasticity to make adaptive changes.

Even if you’ve “lost” a function due to years of disuse, there is always potential to relearn it by engaging in consistent and repetitive practice. We hope this article helped you understand what “use it or lose it” means and how to enforce it to optimize your recovery outcomes.

Flint Rehab is leading the way in neuro-rehabilitation with products that are backed by research and clinically proven to help you recover more effectively from stroke, TBI, and SCI.

Trusted by over 300+ rehab facilities and 10,000+ home customers.

A neuroscientist offered a guide to reading studies about high coffee consumption and low dementia risk. (Washington Post)

Can't read it, behind a paywall, wouldn't change my opinion on coffee lessening the risk of dementia and Parkinsons 

A neuroscientist offered a guide to reading studies about high coffee consumption and low dementia risk. (Washington Post)

Ear-Based Vagus Stimulation Boosts Brain Motor Zones

 

 Let's see how long vagus nerve stimulation has been out there. And why not the non-invasive types? Or is revenue more important than less invasive ways?

Earpiece that speeds up recovery after stroke

The latest here:

Ear-Based Vagus Stimulation Boosts Brain Motor Zones

Summary: A precision neuroengineering study provided the first localized evidence of how noninvasive vagus nerve stimulation interacts with human motor pathways during active movement. The clinical trial investigates transcutaneous auricular vagus nerve stimulation (taVNS) as a supplemental intervention for physical therapy.

By pairing short bursts of electrical stimulation with voluntary finger movements, researchers demonstrated that taVNS does not produce broad, generic physiological changes, but instead isolates and drives highly specific motor cortex activity and autonomic arousal states, opening new avenues to optimize stroke and mobility rehabilitation protocols.

Key Facts

  • The Vagal-Motor Blind Spot: The vagus nerve acts as the primary bidirectional superhighway connecting the brain to major visceral organs. While noninvasive ear-based stimulation (taVNS) is frequently used to assist patients with mobility issues, science has lacked an understanding of how these electrical bursts physically interact with active motor networks in real time.
  • The Movement-Paired Trial: Investigators delivered targeted, brief bursts of taVNS to 36 healthy volunteers engaged in a computer-cued behavioral task requiring them to tap or withhold tapping their fingers at completely randomized intervals.
  • Anatomical Specificity Proven: When compared to baseline trials with no electrical input, movement-paired taVNS caused an immediate, measurable increase in activity within movement-related brain regions. Crucially, moving the stimulation device to an alternative location on the ear failed to generate any cortical boost, proving the extreme spatial precision of the technique.
  • Isolating the Arousal State: Tracking pupillary dilation responses during the movement-paired stimulation blocks revealed that the vagal neural signals were actively promoting a focused state of physiological arousal.
  • Zero Collateral Drift: Other non-movement-related somatic and bodily metrics remained completely unchanged throughout the testing windows, proving that taVNS strictly isolates movement and alertness pathways rather than bleeding into broad, nonspecific physiological side effects.
  • The Non-Voluntary Motor Audit: To double-check this specific behavioral architecture, researchers removed the voluntary choice element. They monitored 19 completely unmoving participants, using an external method to trigger motor pathways while administering taVNS. The targeted manipulation produced localized finger twitches while leaving peripheral physiological baselines completely untouched.

Source: SfN

The vagus nerve connects the brain to major organs throughout the body and plays important roles in many bodily functions. For people with mobility issues participating in physical therapy, stimulating the vagus nerve with a noninvasive technique—transcutaneous auricular vagus nerve stimulation, or taVNS—is emerging as an additional treatment intervention.

But researchers have not assessed how taVNS interacts with motor systems during movement, which could inform treatment strategies for those with mobility issues.

This shows a head with the brain highlighted in golden shades and the implant.
Movement-paired taVNS noninvasively triggers precise activation within movement-related brain regions and autonomic arousal networks while keeping non-motor bodily systems entirely unchanged. Credit: Neuroscience News
New from Journal of Neuroscience, Dane Donegan and Paulius Viskaitis at the Federal Institute of Technology Zurich led a study to advance understanding of how using taVNS as people move affects different systems in their brains and bodies. 

The researchers delivered short bursts of taVNS to 36 healthy volunteers as a computer system directed participants to tap or not tap their fingers at random intervals. Compared to no stimulation, movement-paired taVNS increased activity in a movement-related brain area.

Pointing to the specificity of taVNS location, stimulating a different location with taVNS did not increase activity in the movement-related brain area. Pupil responses in the eye during movement-paired taVNS suggested that the neural signals were promoting an arousal state.

Other nonmovement-related bodily measures were unchanged, suggesting that taVNS was distinctly targeting arousal and movement.

To confirm this specific behavioral role of taVNS in movement, the researchers removed the voluntary component of the paradigm and used a different method to activate motor pathways in the brains of 19 unmoving participants while delivering taVNS.

This manipulation triggered twitches in the finger without affecting other measures. 

According to the researchers, these findings reveal that using taVNS while people move may engage systems in the brain and body that are specific to movement rather than producing broad, nonspecific physiological effects.

Viskaitis emphasizes treatment implications by presenting some of the questions the research team wants to address: “We want to know if any of these systems that taVNS interacts with are correlated with long-term outcomes. In other words, does this intervention lead to better motor performance? And hopefully we can eventually optimize [its use] by doing specific stimulations and tracking how the brain responds.” 

Key Questions Answered:

Q: How can zapping a nerve inside the ear help someone with mobility issues move their hand or fingers better?

A: Because the vagus nerve is a massive electrical conduit linking the body directly to the brain. The study from ETH Zurich reveals that sending short bursts of noninvasive electrical stimulation (taVNS) through the ear at the exact moment an individual moves creates an instant boost of electrical activity in the brain’s primary movement control zones, acting like an external signal amplifier.

Q: Why is the eye’s pupil a major indicator of how well a physical therapy patient is progressing?

A: The eye’s pupil acts as a direct window into the brain’s internal focus engine. The researchers found that pairing movement with taVNS triggered a distinctive pupillary response, proving that the vagal signals are actively driving the brain into a state of hyper-focused arousal. This localized alertness primes the nervous system, making it more flexible and ready to learn or rebuild motor paths.

Q: Does this electrical stimulation run the risk of altering heart rate or other random bodily functions during exercise?

A: Fortunately, no, and that is one of the most exciting breakthroughs in the data. The team proved that while movement-paired taVNS sharpens focus and ramps up activity in movement brain zones, it leaves all non-movement-related bodily systems completely untouched. This hyper-targeted delivery means physical therapists can look forward to treating mobility issues safely, without causing accidental or broad physiological side effects.

Editorial Notes:

  • This article was edited by a Neuroscience News editor.
  • Journal paper reviewed in full.
  • Additional context added by our staff.

About this neuroscience and neurotech research news

Author: SfN Media
Source: SfN
Contact: SfN Media – SfN
Image: The image is credited to Neuroscience News

Original Research: Open access.

Transcutaneous Auricular Vagus Nerve Stimulation During Movement Selectively Activates Motor Circuitry Without Additional Cortical or Autonomic Effects” by Cléo Perrin, Flaminia Pallotti, Tiziano Weilenmann, Clément Lhoste, Weronika Potok-Szybinska, Xue Zhang, Nicole Wenderoth, Olivier Lambercy, Dane Donegan and Paulius Viskaitis. Journal of Neuroscience
DOI:10.1523/JNEUROSCI.2251-25.2026

5 worst foods for your brain, according to dietitians

 

 Is your doctor competent enough to get the dietician to incorporate these into the diet protocol at the hospital and your take home diet protocol and the gift shop and vending machines? NO? So, your doctor failed at that task! What are YOU going to do about that incompetence? Let it pass? Or pay it forward and get someone competent in the hospital for the next stroke survivor?

5 worst foods for your brain, according to dietitians

From sweetened beverages to deli meats, registered dietitians weigh in on the foods most linked to cognitive decline, dementia risk and poor brain health — and what to eat instead.

Senior Wellness Writer

Dietitians say ultra-processed foods, fried foods and sweetened beverages are among the worst things you can eat for brain health. (Getty Creative/Yahoo)

Sure, living longer is a goal most of us share. But it's not just about the number of candles on the birthday cake — the quality of those years matters just as much. And when it comes to living well into your 70s, 80s and beyond, brain health is key.

In this story

The numbers are striking: according to the Alzheimer's Association, more than 7 million U.S. adults have Alzheimer's, and that number is projected to reach 13 million by 2050. Perhaps even more surprising, 1 in 3 older adults dies from Alzheimer's — more than breast and prostate cancer combined.

The good news? Nearly 45% of dementia cases may be preventable or delayed through lifestyle changes, and diet is one of the biggest factors.

The MIND diet (a.k.a. Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay) caught my attention back in 2015, and I've followed the research closely ever since. Developed specifically to help prevent and slow the progression of Alzheimer's and other forms of dementia, it identifies foods that are particularly beneficial for brain health — and five to avoid. The broader research agrees: it's your overall dietary pattern, along with lifestyle factors like exercise, sleep and social connection, that really moves the needle on brain health.

That said, certain foods consistently stand out as particularly harmful. After talking with four fellow dietitians, these five kept coming up.

Sweetened beverages

Gretchen Terry-Leonard, host of the Your Second Prime Podcast and author of Your Second Prime: Does Aging Suck, or Do We Suck at Aging?, puts sugary beverages at the top of her list — and it's not hard to see why. Soda, energy drinks and sweetened iced coffee drinks are low in (or completely devoid of) essential nutrients like fiber, vitamins and minerals, while typically packing a full day's worth of added sugar, if not more. As she puts it, "liquid sugar hits the bloodstream fast, and the brain takes that hit harder than most organs."

The effects show up in the short term and the long term. Blood sugar spikes and crashes are linked to brain fog, poor attention and reduced processing speed — if you've ever eaten one too many donuts at lunch, you've probably felt this firsthand. Over time, chronically high sugar intake — particularly fructose, found in soda and many packaged foods — has been associated with impaired memory formation and changes in the hippocampus, the brain's primary memory center. High sugar diets are also consistently correlated with higher dementia rates, partly because excess added sugar is pro-inflammatory and raises the risk of obesity and type 2 diabetes — known risk factors for Alzheimer's.

And then there's the gut-brain connection, notes Terry-Leonard. High sugar intake disrupts the gut microbiome, and while that research is still evolving, the link between gut health and brain health is becoming increasingly hard to ignore.

Deli meats

Another food on Terry-Leonard's radar — and one that came up repeatedly among our experts? Deli meats, along with other processed meats like hot dogs and salami. Sorry, charcuterie board fans.

"The World Health Organization classified processed meat as a Group 1 carcinogen for colorectal cancer back in 2015, and the brain research has been catching up," explains Terry-Leonard. "Ultra-processed meat has been associated with faster declines in executive function and global cognition in older adults, and a 2024 French dementia study found that delicatessen meats were one of the main dietary vehicles for a small group of neurotoxic chemical contaminants tied to higher dementia risk."

That doesn't mean you have to swear off the charcuterie board entirely, though. Terry-Leonard's advice: think like the Mediterranean. "Let the plant side carry the board — olives, marinated vegetables, fruit, nuts — with the meat as a flavor accent rather than the main event."

Jennifer Ventrelle, MS, RDN, assistant professor in the Departments of Family and Preventive Medicine & Clinical Nutrition at Rush University Medical Center, echoes this approach. The MIND diet doesn't ban these foods outright — it frames them as foods to limit, not avoid. The target is keeping processed meat to 3- to 5-ounce portions, no more than once per week.

Ultra-processed foods

Potato chips, packaged sweets, instant noodles, frozen dinners — if it comes in a bag or box with an ingredient list that reads like a chemistry exam, it probably falls into the ultra-processed category. And experts broadly agree that limiting these foods is one of the more impactful things you can do for your brain.

"Ultra-processed foods tend to be low in fiber and micronutrients while being high in refined carbohydrates, unhealthy fats and additives," explains Johannah Katz, registered dietitian at Consumer Health Digest. "That combination is pro-inflammatory and can contribute to blood sugar dysregulation — both of which can impact cognitive function and mental health."

The research is pretty sobering. A 2022 study published in JAMA Neurology followed 10,775 individuals over eight years. Those who ate the most ultra-processed foods had a 25% faster rate of executive function decline and a 28% faster rate of overall cognitive decline compared with those who ate the least.

The effects extend beyond cognition too. "Ultra-processed foods have also been linked to poorer mood and higher rates of depression," notes Ventrelle. A 2023 analysis of over 31,000 women found that those who consumed nine or more servings of ultra-processed foods per day were 50% more likely to develop depression.

And it's not just what these foods contain — it's what they're missing. They tend to be low in the fiber, omega-3 fatty acids, polyphenols and other nutrients that actively support brain health. Both Ventrelle and Terry-Leonard also flag the gut microbiome angle: strip out the fiber and beneficial compounds that real food carries, and you're essentially starving the good gut bacteria that communicate directly with your brain — while feeding the bad ones.

The good news is that small shifts add up. Swapping ultra-processed snacks for healthier options or whole food alternatives — nuts instead of chips, fresh fruit instead of packaged sweets, whole grains instead of instant noodles — gives your brain the nutrients it's actually looking for.

Fried foods

It's probably no surprise that fried foods aren't great for your heart. But their impact on your brain? That part tends to fly under the radar.

The connection starts with the oils. Many fried foods are cooked in oils high in saturated fat or even partially hydrogenated oils, which contain industrial trans fats. "These are still tucked into some fast food fryers and shelf-stable baked goods," notes Terry-Leonard. These fats raise LDL cholesterol, contribute to arterial inflammation and reduce blood flow — and when blood flow to the brain is compromised, so is cognitive function.

Then there's what happens to the food itself during deep-frying. A U.K. Biobank study of more than 140,000 people found that eating just one serving of fried food per day was associated with a 12% higher risk of anxiety and a 7% higher risk of depression. The culprit is acrylamide — a chemical formed during the frying process that's been shown to contribute to neuroinflammation and weaken the blood-brain barrier, making the brain more susceptible to damage over time.

These findings align with the MIND diet, which Ventrelle recommends following: keep fried foods to less than one serving once per week.

Alcohol

Alcohol is a tricky one. After all, both the MIND diet and the Mediterranean diet allow for up to one 5-ounce glass of wine per day. But the science has shifted. "This one is a bit more controversial lately," notes Ventrelle, "as there have been some studies suggesting that some individuals should not consume any alcohol at all for heart health" — and increasingly, brain health too.

Here's what we know: any amount of alcohol affects the central nervous system by disrupting neurotransmitters. It suppresses glutamate, which plays a key role in memory and cognition, and boosts GABA, which slows brain activity. In the short term, this shows up as impaired balance, speech, reasoning and impulse control. Heavy drinking can also cause blackouts — episodes in which the hippocampus is temporarily unable to form new long-term memories.

The longer-term picture, though, is particularly concerning. Regular alcohol consumption has been linked to reduced brain volume, and even one drink per day has been linked to measurable shrinkage. A 2022 study of 36,678 generally healthy middle-aged and older adults found that the more people drank, the greater the damage — with heavy drinkers (four or more drinks per day) showing brain volumes that appeared roughly 10 years older than those of non-drinkers.

Foods to focus on instead 

So what should you eat? Ashley Koff, RD, nutrition course director at the University of California, Irvine and author of Your Best Shot, recommends focusing on a variety of colorful produce and low-mercury fatty fish.

Ventrelle and Terry-Leonard both point to the MIND diet as a helpful framework. In the Rush Memory and Aging Project, people with the highest adherence to it had cognitive decline rates equivalent to being seven and a half years younger — a finding that's hard to ignore. The diet specifically promotes these foods for their brain health benefits:

  • Leafy green vegetables

  • Other colorful vegetables

  • Berries

  • Extra-virgin olive oil

  • Nuts and seeds

  • Fish and seafood

  • Poultry

  • Whole grains

  • Beans and legumes

Terry-Leonard adds one more category worth incorporating: fermented foods like yogurt, kefir and sauerkraut that provide probiotics to promote gut health.

FAQs

What foods are linked to dementia?

Diets high in added sugar, sugar-sweetened beverages, ultra-processed foods, processed meats and alcohol have all been linked to increased dementia risk. On the flip side, the MIND diet — which emphasizes leafy greens, berries, olive oil, nuts, fish and whole grains — remains the most rigorously studied dietary pattern for dementia prevention.

Why are processed foods unhealthy?

Ultra-processed foods are typically high in added sugar, sodium, refined carbohydrates and unhealthy fats while being low in key nutrients like fiber, omega-3 fatty acids, vitamins and minerals. For brain health specifically, that combination is pro-inflammatory, disrupts blood sugar regulation and starves the gut bacteria that communicate directly with your brain.

Meet our experts

  • Gretchen Terry-Leonard, host of the Your Second Prime Podcast and author of Your Second Prime: Does Aging Suck, or Do We Suck at Aging?

  • Jennifer Ventrelle, MS, RDN, assistant professor in the Departments of Family and Preventive Medicine & Clinical Nutrition at Rush University Medical Center

  • Johannah Katz, registered dietitian at Consumer Health Digest

  • Ashley Koff, RD, nutrition course director at the University of California, Irvine and author of Your Best Shot.

Our health content is for informational purposes only and is not intended as professional medical advice. Consult a medical professional on questions about your health.