The Brain Alarm Signs That Warn Of Dementia

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When it comes to predicting age-related cognitive impairment:

First there are genetic factors to take into account (such as the APOE4 gene for Alzheimer’s), as well as things such as age and sex.

When it comes to sex, by the way, what matters here is hormones, which is why [it seems; this as technically as yet unproven with full rigor, but the hypothesis is sound and there is a body of evidence gradually being accumulated to support it] postmenopausal women with untreated menopause get Alzheimer’s at a higher rate and deteriorate more quickly:

Alzheimer’s Sex Differences May Not Be What They Appear

Next, there are obviously modifiable lifestyle factors to take into account, things that will reduce your risk such as getting good sleep, good diet, good exercise, and abstaining from alcohol and smoking, as well as oft-forgotten things such as keeping cognitively active and, equally importantly, socially active:

How To Reduce Your Alzheimer’s Risk

(the article outlines what matters the most in each of the above areas, by the way, so that you can get the most bang-for-buck in terms of lifestyle adjustments)

Lastly (in the category of risk factors), there are things to watch out for in the blood such as hypertension and high cholesterol.

Nipping it in the blood

In new research (so new it is still ongoing, but being at year 2 of a 4-year prospective study, they have published a paper with their results so far), researchers have:

  1. started with the premise “dementia is preceded by mild cognitive impairment”
  2. then, asked the question “what are the biometric signs of mild cognitive impairment?”

Using such tools as functional near-infrared spectroscopy (fNIRS) while the participants performed cognitive tasks, they were able to record changes in plasma levels of extracellular vesicles, assessing them with small-particle flow cytometry.

Translating from sciencese: they gave the participants mental tasks, and while they completed them, the researchers scanned their brains and monitored blood flow and the brain’s ability to compensate for any lack of it.

What they found:

  • in young adults, blood flow increased, facilitating neurovascular coupling (this is good)
  • in older adults, blood flow did not increase as much, but they engaged other areas of the brain to compensate, by what’s called functional connectivity (this is next best)
  • in those with mild cognitive impairment, blood flow was reduced, and they did not have the ability to compensate by functional connectivity (this is not good)

They also performed a liquid biopsy, which sounds alarming but it just means they took some blood, and tested this for density of cerebrovascular endothelial extracellular vesicles (CEEVs), which—in more prosaic words—are bits from the cells lining the blood vessels in the brain.

People with mild cognitive impairment had more of these brain bits in their blood than those without.

You can read the paper itself here:

Neurovascular coupling, functional connectivity, and cerebrovascular endothelial extracellular vesicles as biomarkers of mild cognitive impairment

What this means

The science here is obviously still young (being as it is still in progress), but this will likely contribute greatly to early warning signs of dementia, by catching mild cognitive impairment in its early stages, by means of a simple blood test, instead of years of wondering before getting a dementia diagnosis.

And of course, forewarned is forearmed, so if this is something that could be done as a matter of routine upon hitting the age of, say, 65 and then periodically thereafter, it would catch a lot of cases while there’s still more time to turn things around.

As for how to turn things around, well, we imagine you have now read our “How To Reduce Your Alzheimer’s Risk” article linked up top (if not, we recommend checking it out), and there is also…

Do Try This At Home: The 12-Week Brain Fitness Program To Measurably Boost Your Brain

Take care!

When it comes to predicting age-related cognitive impairment:

First there are genetic factors to take into account (such as the APOE4 gene for Alzheimer’s), as well as things such as age and sex.

When it comes to sex, by the way, what matters here is hormones, which is why [it seems; this as technically as yet unproven with full rigor, but the hypothesis is sound and there is a body of evidence gradually being accumulated to support it] postmenopausal women with untreated menopause get Alzheimer’s at a higher rate and deteriorate more quickly:

Alzheimer’s Sex Differences May Not Be What They Appear

Next, there are obviously modifiable lifestyle factors to take into account, things that will reduce your risk such as getting good sleep, good diet, good exercise, and abstaining from alcohol and smoking, as well as oft-forgotten things such as keeping cognitively active and, equally importantly, socially active:

How To Reduce Your Alzheimer’s Risk

(the article outlines what matters the most in each of the above areas, by the way, so that you can get the most bang-for-buck in terms of lifestyle adjustments)

Lastly (in the category of risk factors), there are things to watch out for in the blood such as hypertension and high cholesterol.

Nipping it in the blood

In new research (so new it is still ongoing, but being at year 2 of a 4-year prospective study, they have published a paper with their results so far), researchers have:

  1. started with the premise “dementia is preceded by mild cognitive impairment”
  2. then, asked the question “what are the biometric signs of mild cognitive impairment?”

Using such tools as functional near-infrared spectroscopy (fNIRS) while the participants performed cognitive tasks, they were able to record changes in plasma levels of extracellular vesicles, assessing them with small-particle flow cytometry.

Translating from sciencese: they gave the participants mental tasks, and while they completed them, the researchers scanned their brains and monitored blood flow and the brain’s ability to compensate for any lack of it.

What they found:

  • in young adults, blood flow increased, facilitating neurovascular coupling (this is good)
  • in older adults, blood flow did not increase as much, but they engaged other areas of the brain to compensate, by what’s called functional connectivity (this is next best)
  • in those with mild cognitive impairment, blood flow was reduced, and they did not have the ability to compensate by functional connectivity (this is not good)

They also performed a liquid biopsy, which sounds alarming but it just means they took some blood, and tested this for density of cerebrovascular endothelial extracellular vesicles (CEEVs), which—in more prosaic words—are bits from the cells lining the blood vessels in the brain.

People with mild cognitive impairment had more of these brain bits in their blood than those without.

You can read the paper itself here:

Neurovascular coupling, functional connectivity, and cerebrovascular endothelial extracellular vesicles as biomarkers of mild cognitive impairment

What this means

The science here is obviously still young (being as it is still in progress), but this will likely contribute greatly to early warning signs of dementia, by catching mild cognitive impairment in its early stages, by means of a simple blood test, instead of years of wondering before getting a dementia diagnosis.

And of course, forewarned is forearmed, so if this is something that could be done as a matter of routine upon hitting the age of, say, 65 and then periodically thereafter, it would catch a lot of cases while there’s still more time to turn things around.

As for how to turn things around, well, we imagine you have now read our “How To Reduce Your Alzheimer’s Risk” article linked up top (if not, we recommend checking it out), and there is also…

Do Try This At Home: The 12-Week Brain Fitness Program To Measurably Boost Your Brain

Take care!

Don’t Forget…

Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

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  • The Mind-Gut Connection – by Dr. Emeran Mayer

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We’ve reviewed books about the mind-gut connection before, so what makes this one stand out?

    Firstly, it’s a lot more comprehensive than the usual “please, we’re begging you, eat some fiber”.

    And yes, of course that’s part of it. Prebiotics, probiotics, reduce fried and processed foods, reduce sugar/alcohol, reduce meat, and again, eat some greenery.

    But where this book really comes into its own is looking more thoroughly at the gut microbiota and their function. Dr. Mayer goes well beyond “there are good and bad bacteria” and looks at the relationship each of them have with the body’s many hormones, and especially neurotransmitters like serotonin and dopamine.

    He also looks at the two-way connection between brain and gut. Yes, our gut gives us “gut feelings”, but 10% of communication between the brain and gut is in the other direction; he explores what that means for us, too.

    Finally, he does give a lot of practical advice, not just dietary but also behavioral, to make the most of our mind-gut connection and make it work for our health, rather than against it.

    Bottom line: this is the best book on the brain-gut connection that this reviewer has read so far, and certainly the most useful if you already know about gut-healthy nutrition, and are looking to take your understanding to the next level.

    Click here to check out The Mind-Gut Connection, and start making yours work for your benefit!

    Share This Post

  • Pneumonia: Prevention Is Better Than Cure

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Pneumonia: What We Can & Can’t Do About It

    Pneumonia is a significant killer of persons over the age of 65, with the risk increasing with age after that, rising very sharply around the age of 85:

    QuickStats: Death Rates from Influenza and Pneumonia Among Persons Aged ≥65 Years, by Sex and Age Group

    While pneumonia is treatable, especially in young healthy adults, the risks get more severe in the older age brackets, and it’s often the case that someone goes into hospital with one thing, then develops pneumonia, which the person was already not in good physical shape to fight, because of whatever hospitalized them in the first place:

    American Lung Association | Pneumonia Treatment and Recovery

    Other risk factors besides age

    There are a lot of things that can increase our risk factor for pneumonia; they mainly fall into the following categories:

    • Autoimmune diseases
    • Other diseases of the immune system (e.g. HIV)
    • Medication-mediated immunosuppression (e.g. after an organ transplant)
    • Chronic lung diseases (e.g. asthma, COPD, Long Covid, emphysema, etc)
    • Other serious health conditions ← we know this one’s broad, but it encompasses such things as diabetes, heart disease, and cancer

    See also:

    Why Chronic Obstructive Pulmonary Disease (COPD) Is More Likely Than You Think

    Things we can do about it

    When it comes to risks, we can’t do much about our age and some of the other above factors, but there are other things we can do to reduce our risk, including:

    • Get vaccinated against pneumonia if you are over 65 and/or have one of the aforementioned risk factors. This is not perfect (it only reduces the risk for certain kinds of infection) and may not be advisable for everyone (like most vaccines, it can put the body through its paces a bit after taking it), so speak with your own doctor about this, of course.
    • Avoid contagion. While pneumonia itself is not spread person-to-person, it is caused by bacteria or viruses (there are numerous kinds) that are opportunistic and often become a secondary infection when the immune system is already busy with the first one. So, if possible avoid being in confined spaces with many people, and do wash your hands regularly (as a lot of germs are transferred that way and can get into the respiratory tract because you touched your face or such).
    • If you have a cold, or flu, or other respiratory infection, take it seriously, rest well, drink fluids, get good immune-boosting nutrients. There’s no such thing as “just a cold”; not anymore.
    • Look after your general health too—health doesn’t exist in a vacuum, and nor does disease. Every part of us affects every other part of us, so anything that can be in good order, you want to be in good order.

    This last one, by the way? It’s an important reminder that while some diseases (such as some of the respiratory infections that can precede pneumonia) are seasonal, good health isn’t.

    We need to take care of our health as best we can every day along the way, because we never know when something could change.

    Want to do more?

    Check out: Seven Things To Do For Good Lung Health!

    Take care!

    Share This Post

  • Artichoke vs Cabbage – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing artichoke to cabbage, we picked the artichoke.

    Why?

    Looking at the macros first of all, artichoke has more than 2x the protein; it also has nearly 2x the carbs, but to more than counterbalance that, it has more than 2x the fiber. An easy win for artichoke in the macros category.

    In the category of vitamins, both are very respectable; artichoke has more of vitamins B1, B2, B3, B5, B9, E, and choline, while cabbage has more of vitamins A, C, and K. Superficially, that’s a 7:3 win for artichoke, but the margins of difference for artichoke’s vitamins are very small (meaning cabbage is hot on its heels for those vitamins), whereas cabbage’s A, C, and K are with big margins of difference (3–7x more), and arguably those vitamins are higher priority in the sense that B-vitamins of various kinds are found in most foods, whereas A, C, and K aren’t, and while E isn’t either, artichoke had a tiny margin of difference for that. All in all, we’re calling this category a tie, as an equally fair argument could be made for either vegetable here.

    When it comes to minerals, there’s a much clearer winner: artichoke has a lot more copper, iron, magnesium, manganese, phosphorus, potassium, and zinc, while cabbage has a tiny bit more selenium. The two vegetables are equal on calcium.

    Adding up two clear artichoke wins and a tie, makes for an overall clear win for artichoke. Of course, enjoy both though; diversity is almost always best of all!

    Want to learn more?

    You might like to read:

    What’s Your Plant Diversity Score?

    Take care!

    Share This Post

Related Posts

  • I can’t afford olive oil. What else can I use?
  • The How Not to Die Cookbook – by Dr. Michael Greger

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We’ve previously reviewed Dr. Greger’s “How Not To Die”, which is excellent and/but very science-dense.

    This book is different, in that the science is referenced and explained throughout, but the focus is the recipes, and how to prepare delicious healthy food in accordance with the principles laid out in How Not To Die.

    It also follows “Dr Greger’s Daily Dozen“, that is to say, the 12 specific things he advises we make sure to have every day, and thus helps us to include them in an easy, no-fuss fashion.

    The recipes themselves are by Robin Robertson, and/but with plenty of notes by Dr Greger; they clearly collaborated closely in creating them.

    The ingredients are all things one can find in any well-stocked supermarket, so unless you live in a food desert, you can make these things easily.

    And yes, the foods are delicious too.

    Bottom line: if you’re interested in cooking according to perhaps the most science-based dietary system out there, then this book is a top-tier choice.

    Click here to check out The How Not To Die Cookbook, and live well!

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  • Eat To Beat Cancer

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Controlling What We Can, To Avoid Cancer

    Every time a cell in our body is replaced, there’s a chance it will be cancerous. Exactly what that chance is depends on very many factors. Some of them we can’t control; others, we can.

    Diet is a critical, modifiable factor

    We can’t choose, for example, our genes. We can, for the most part, choose our diet. Why “for the most part”?

    • Some people live in a food desert (the Arctic Circle is a good example where food choices are limited by supply)
    • Some people have dietary restrictions (whether by health condition e.g. allergy, intolerance, etc or by personal-but-unwavering choice, e.g. vegetarian, vegan, kosher, halal, etc)

    But for most of us, most of the time, we have a good control over our diet, and so that’s an area we can and should focus on.

    Choose your animal protein wisely

    If you are vegan, you can skip this section. If you are not, then the short version is:

    • Fish: almost certainly fine
    • Poultry: the jury is out; data is leaning towards fine, though
    • Red meat: significantly increased cancer risk
    • Processed meat: significantly increased cancer risk

    For more details (and a run-down on the science behind the above super-summarized version):

    Skip The Ultra-Processed Foods

    Ok, so this one’s probably not a shocker in its simplest form:

    ❝Studies are showing us is that not only do the ultraprocessed foods increase the risk of cancer, but that after a cancer diagnosis such foods increase the risk of dying❞

    Source: Is there a connection between ultraprocessed food and cancer?

    There’s an unfortunate implication here! If you took the previous advice to heart and cut out [at least some] meat, and/but then replaced that with ultra-processed synthetic meat, then this was not a great improvement in cancer risk terms.

    Ultra-processed meat is worse than unprocessed, regardless of whether it was from an animal or was synthetic.

    In other words: if you buy textured soy pieces (a common synthetic meat), it pays to look at the ingredients, because there’s a difference between:

    • INGREDIENTS: SOY
    • INGREDIENTS: Rehydrated Textured SOY Protein (52%), Water, Rapeseed Oil, SOY Protein Concentrate, Seasoning (SULPHITES) (Dextrose, Flavourings, Salt, Onion Powder, Food Starch Modified, Yeast Extract, Colour: Red Iron Oxide), SOY Leghemoglobin, Fortified WHEAT Flour (WHEAT Flour, Calcium Carbonate, Iron, Niacin, Thiamin), Bamboo Fibre, Methylcellulose, Tomato Purée, Salt, Raising Agent: Ammonium Carbonates

    Now, most of those original base ingredients are/were harmless per se (as are/were the grapes in wine—before processing into alcohol), but it has clearly been processed to Hell and back to do all that.

    Choose the one that just says “soy”. Or eat soybeans. Or other beans. Or lentils. Really there are a lot of options.

    About soy, by the way…

    There is (mostly in the US, mostly funded by the animal agriculture industry) a lot of fearmongering about soy. Which is ironic, given the amount of soy that is fed to livestock to be fed to humans, but it does bear addressing:

    ❝Soy foods are safe for all cancer patients and are an excellent source of plant protein. Studies show soy may improve survival after breast cancer❞

    Source: Food risks and cancer: What to avoid

    (obviously, if you have a soy allergy then you should not consume soy—for most people, the above advice stands, though)

    Advanced Glycation End-Products

    These (which are Very Bad™ for very many things, including cancer) occur specifically as a result of processing animal proteins and fats.

    Note: not even necessarily ultra-processing, just processing can do it. But ultra-processing is worse. What’s the difference, you wonder?

    The difference between “ultra-processed” and just “processed”:
    • Your average hotdog has been ultra-processed. It’s not only usually been changed with many artificial additives, it’s also been through a series of processes (physical and chemical) and ends up bearing little relation to the creature it came from.
    • Your bacon (that you bought fresh from your local butcher, not a supermarket brand of unknown provenance, and definitely not the kind that might come on the top of frozen supermarket pizza) has been processed. It’s undergone a couple of simple processes on its journey “from farm to table”. Remember also that when you cook it, that too is one more process (and one that results in a lot of AGEs).

    Read more: What’s so bad about AGEs?

    Note if you really don’t want to cut out certain foods, changing the way you cook them (i.e., the last process your food undergoes before you eat it) can also reduce AGES:

    Advanced Glycation End Products in Foods and a Practical Guide to Their Reduction in the Diet

    Get More Fiber

    ❝The American Institute for Cancer Research shows that for every 10-gram increase in fiber in the diet, you improve survival after cancer diagnosis by 13%❞

    Source: Plant-based diet is encouraged for patients with cancer

    Yes, that’s post-diagnosis, but as a general rule of thumb, what is good/bad for cancer when you have it is good/bad for cancer beforehand, too.

    If you’re thinking that increasing your fiber intake means having to add bran to everything, happily there are better ways:

    Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)

    Enjoy!

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  • 7 Essential Devices For Hand Arthritis: Regain Control of Your Life

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Dr. Diana Girnita is a double board-certified physician in rheumatology and internal medicine. With a PhD in immunology (on top of her MD), and training at Harvard and top universities, she founded Rheumatologist OnCall, offering integrative medicine to broaden rheumatology access. Here’s what she has to say about things that make life easier:

    Get your hands on these…

    The seven devices that Dr. Girnita recommends are:

    • Hand grip strengthener: helps build grip strength with a spring-loaded mechanism. Regular use can improve strength and reduce pain.
    • Finger exerciser: different device; similar principle: it strengthens hand and finger muscles using resistance, enhancing hand function.
    • Moisturizing paraffin bath: a heated paraffin wax bath that soothes hands, providing heat therapy and moisturizing the skin.
    • Weighted silverware: weighted utensils (knives, forks, spoons) make gripping easier and provide stability for eating.
    • Foam tubing grips: foam covers to make kitchen tools, toothbrushes, and hairbrushes easier to grip.
    • Electric can-opener: reduces strain in opening cans, making meal preparation more accessible.
    • Compression gloves: provide gentle compression to reduce swelling and pain, improving hand flexibility and circulation.
    • Door knob cover grips: make it easier to turn doorknobs by providing a larger surface to grip.
    • Wider-grip pens: ergonomically designed pens with a larger diameter and softer grip reduce hand strain while writing.

    This writer, who does not have arthritis but also does not have anything like the grip strength she used to, also recommends a jar opener like this one.

    As a bonus, if you spend a lot of time writing at a computer, an ergonomic split keyboard like this one goes a long way to avoiding carpal tunnel syndrome, and logically must be better for arthritis than a regular keyboard; another excellent thing to have (that again this writer uses and swears by) is an ergonomic vertical mouse like this one (aligns the wrist bones correctly; the “normal” horizontal version is woeful for the carpal bones). These things are both also excellent to help avoid worsening peripheral neuropathy (something that troubles this writer’s wrists if she’s not careful, due to old injuries there).

    For more on the seven things otherwise listed above, enjoy:

    Click Here If The Embedded Video Doesn’t Load Automatically!

    Want to learn more?

    You might also like to read:

    Take care!

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    Learn to Age Gracefully

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