Blood-Brain Barrier Breach Blamed For Brain-Fog
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Move Over, Leaky Gut. Now It’s A Leaky Brain.
…which is not a headline that promises good news, and indeed, the only good news about this currently is “now we know another thing that’s happening, and thus can work towards a treatment for it”.
Back in February (most popular media outlets did not rush to publish this, as it rather goes against the narrative of “remember when COVID was a thing?” as though the numbers haven’t risen since the state of emergency was declared over), a team of Irish researchers made a discovery:
❝For the first time, we have been able to show that leaky blood vessels in the human brain, in tandem with a hyperactive immune system may be the key drivers of brain fog associated with long covid❞
~ Dr. Matthew Campbell (one of the researchers)
Let’s break that down a little, borrowing some context from the paper itself:
- the leaky blood vessels are breaching the blood-brain-barrier
- that’s a big deal, because that barrier is our only filter between our brain and Things That Definitely Should Not Go In The Brain™
- a hyperactive immune system can also be described as chronic inflammation
- in this case, that includes chronic neuroinflammation which, yes, is also a major driver of dementia
You may be wondering what COVID has to do with this, and well:
- these blood-brain-barrier breaches were very significantly associated (in lay terms: correlated, but correlated is only really used as an absolute in write-ups) with either acute COVID infection, or Long Covid.
- checking this in vitro, exposure of brain endothelial cells to serum from patients with Long Covid induced the same expression of inflammatory markers.
How important is this?
As another researcher (not to mention: professor of neurology and head of the school of medicine at Trinity) put it:
❝The findings will now likely change the landscape of how we understand and treat post-viral neurological conditions.
It also confirms that the neurological symptoms of long covid are measurable with real and demonstrable metabolic and vascular changes in the brain.❞
~ Dr. Colin Doherty (see mini-bio above)
You can read a pop-science article about this here:
Irish researchers discover underlying cause of “brain fog” linked with long covid
…and you can read the paper in full here:
Want to stay safe?
Beyond the obvious “get protected when offered boosters/updates” (see also: The Truth About Vaccines), other good practices include the same things most people were doing when the pandemic was big news, especially avoiding enclosed densely-populated places, washing hands frequently, and looking after your immune system. For that latter, see also:
Beyond Supplements: The Real Immune-Boosters!
Take care!
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Why You Can’t Deep Squat (And the Benefits You’re Missing)
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Matt Hsu fought his own battle with chronic pain from the age of 16 in his feet, knees, hips, back, shoulders, elbows, forearms, wrists, hands, and head. Seeking answers, he’s spent a career in corrective exercise, posture alignment, structural integration, orthopedic exercise, sports medicine, and has more certifications than we care to list. In short, he knows his stuff.
Yes you can (with some work)
The deep squat, also called Asian squat, Slav squat, sitting squat, resting squat, primal squat, and various other names, is an important way of sitting that has implications for a lot of aspects of health.
Why it’s so important: it preserves the mobility of our hips, ankles, and everything in between, and maintaining especially the hip mobility makes a big difference not only to general health, but also to reducing the risk of injury. It also maintains lower body strength, making falls in older age less likely in the first place, and if falls do happen, makes injury less likely, and if injury does happen, makes the injury likely less severe.
An important misconception: there is a popular, but unfounded, belief that the ability or inability to do this is decided by genes—or if not outright decided, that at the very least Asians and Slavs have a genetic advantage. However, this is simply not true. Westerners and others can learn to do it just fine, and on the flipside, Asians and Slavs who grew up in the West may often struggle with it. The truth is, the deciding factor is lifestyle: if your culture involves sitting this way more often, you’ll be able to do it more comfortably and easily than if you’re just now trying it for the first time.
Factors that you can control: you can’t change where you grew up, but you can change how you sit down now. Achieving the squat requires repeated position practice, and the more frequently you do so (even if you just start with a few seconds and work your way up to longer periods), the better you’ll get at it. And, on the contrary, sitting in chairs weakens and shortens the muscles involved, so any time you spend sitting in chairs is working against you. There are many reasons it’s advisable to avoid sitting in chairs more than necessary, and this is one of them.
10almonds tip: a limiting factor for many people initially is ankle flexibility, which may result in one’s center of gravity being a bit far back, leading to a tendency to have to change something to avoid toppling over backwards. Rather than holding onto something immobile (e.g. furniture) in front of where you are sitting, consider simply holding an object in front of you in your hands. A book is a fine example; holding that in front of you (feel free to read the book) will shift your center of gravity forwards a bit, and will thus allow you to sit there a little longer, thus improving your strength and flexibility while you do, until you can do it without holding something in front of you. If you try with a book and you’re still prone to toppling backwards, try with something heavier, but do use the minimum weight necessary, because ultimately the counterbalance is just a crutch to get you to where you need to be.
For more visual advice on how to do it, 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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Beating Toxic Positivity
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How To Get Your Brain On A More Positive Track (Without Toxic Positivity)
There have been many studies done regards optimism and health, and they generally come to the same conclusion: optimism is simply good for the health.
Here’s an example we’ve mentioned before, but it’s a good introduction to today’s main feature. It’s a longitudinal study, and it followed 121,700 women (what a sample size!) for eight years. It controlled for all kinds of other lifestyle factors (especially smoking, drinking, diet, and exercise habits, as well as pre-existing medical conditions), so this wasn’t a case of “people who are healthy are more optimistic as results. And, in the researchers’ own words…
❝We found strong and statistically significant associations of increasing levels of optimism with decreasing risks of mortality, including mortality due each major cause of death, such as cancer, heart disease, stroke, respiratory disease, and infection. Importantly, findings were maintained after close control for potential confounding factors, including sociodemographic characteristics and depression❞
Read: Optimism and Cause-Specific Mortality: A Prospective Cohort Study
And yet, toxic positivity can cause as many problems as it tries to fix.
What is toxic positivity?
- Toxic positivity is the well-meaning friend who says “I’m sure it’ll be ok” when you know full well it definitely will not.
- Toxic positivity is the allegorical frog-in-a-pan saying that the temperature rises due to climate change are gradual, so they’re nothing to worry about
- Toxic positivity is thinking that “good vibes” will outperform chemotherapy
Sometimes, a dose of realism is needed. So, can we do that and maintain a positive attitude?
The answer is: somewhat, yes! But first, a quick check-in:
❝I’m not a pessimist; I’m a realist!❞
~ every pessimist ever
To believe self-reports, the world is divided between optimists and realists. But how does your outlook measure up, really?
While like most free online tests, this is offered “as-is” with the usual caveats about not being a clinical diagnostic tool, this one actually has a fair amount of scientific weight behind it:
❝Empirical testing has indicated the validity of the Optimism Pessimism Instrument as published in the scientific journal Current Psychology: Research and Reviews.
The IDRlabs Optimism/Pessimism Test (IDR-OPT) was developed by IDRlabs. The IDR-OPT is based on the Optimism/Pessimism Instrument (OPI) developed by Dr. William Dember, Dr. Stephanie Martin, Dr. Mary Hummer, Dr. Steven Howe, and Dr. Richard Melton, at the University of Cincinnati.❞
Take This Short (1–2 mins) Test
How did you score? And what could you do to improve on that score?
First, it’s said that with a big enough “why”, one can overcome any “how”. So…
An attitude of gratitude
We know, we know, it’s very Oprah Winfrey. But also, it works. Take the time, ideally daily, to quickly list 3–5 things for which you feel grateful. Great or small, it can be anything from your spouse to your cup of coffee, provided you feel fortunate to have it.
How this works: our brains easily get stuck in loops, so it can help to nudge them into a more positive loop.
What about when we are treated unfairly? Are we supposed to be grateful?
Sometimes, our less positive emotions are necessary, to protect us and/or those around us, and to provide a motivational force. We can still maintain a positive attitude by noting the bad thing and some good, but watch out! Notice the difference:
- “How dare they take our healthcare away, but at least I’m not sick right now” (lasting impression: no action required)
- “At least I’m not sick right now, but how dare they take our healthcare away!” (lasting impression: action required)
It’s a well-known idea in neurolinguistic programming, that “but” negates whatever goes before it (think of “I’m sorry but”, or “I’m not racist but”, etc), so use it consciously and wisely, or else simply use “and” instead.
Cognitive reframing: problem, or opportunity?
Most problems can be opportunities, even if the problems themselves genuinely suck and are not intrinsically positive. A way of leveraging this can be replacing “I have to…” with “I get to…”.
This not only can reframe problems as opportunities, but also calls back to the gratitude idea.
- Instead of “I have to get my mammogram / prostate exam” (not generally considered fun activities), “I get to have the peace of mind of being free from cancer / I get to have the forewarning that will keep me safe”.
- Instead of “I have to go to work”, “I get to go to work” (many wish they were in your shoes!)
- Instead of “I have to rest”, “I get to rest”
When things are truly not great
Whether due to internal or external factors, whether you can control something or not, sometimes things are truly not great. The trick here is that in most contexts, one can replace negative talk, with verbally positive talk, no matter how dripping with scathing irony. You’ll still get to express the idea you wanted, but your brain will feel more positive and you’ll be in a positive loop rather than a negative one.
This, by the way, is the inverse of talking to a dog with a tone of voice that is completely the opposite of the meaning of the words. Whereas the dog will interpret the tone only, your brain will interpret the words only.
- You just spilled your drink over yourself at a social function? “Aren’t I the very model of grace and charm?”
- You made a costly mistake in your business dealings? “I am such a genius”
- You just got a diagnosis of a terrible disease? “Well, this is fabulous”
None of these things involve burying your head in the sand, in the manner of toxic positivity. You’ll still learn from your business mistake and correct it as best you can, or take appropriate action regards the disease, for example.
You’ll just feel better while you do it, and not get caught into a negative spiral that ruins your day, or even your next few months.
Sympathetic/Somatic Therapy:
Lastly, an easy one, leveraging the body’s tendency to get in sync with things around us:
For when you do just need a mood change, have an uplifting playlist available at the touch of a button. It’s hard to be consumed with counterproductive feelings to the tune of “Walking on Sunshine”!
Bonus tip: consider having the playlist start with something that is lyrically negative while musically upbeat. That way, your brain won’t resist it as antithetical to your mood, and by the second track, you’ll already be on your way to a better mood.
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The Good Skin Solution – by Shann Jones
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Not everyone knows that eczema is not just a skin condition; it’s an autoimmune condition. And thus to heal one’s skin, the gut is a good place to start.
This is not your average gut health book though, because it is focused on optimizing things for one’s skin… Although the author herself learned about this while helping her husband to battle an MRSA infection. In other words, a multi-fronted battle for sure.
The advices in this book are good for, as the subtitle promises, an assortment of other skin conditions too, including psoriasis, rosacea, and acne. She covers the usual bases, and recommends probiotics, of which she’s particularly keen to praise kefir, while advising against the use of antibiotics unless absolutely necessary—something we’ve talked about from time to time at 10almonds, too.
Not content to merely cover those things, she also talks allergies, and walking the fine line between avoiding triggers and developing hypersensitivity by treating to live in a perfectly clean bubble.
Ultimately, she offers “7 daily habits”, 3 of which involve goat’s milk kefir, that’s how keen on it she is. So if you’re vegan, probably this book isn’t as good value, however much it discusses the health woes that can be caused and/or exacerbated by drinking cow’s milk.
The style is very light and personable, which makes for easy reading, more like one friend talking to another, than a scientific textbook.
Bottom line: if you’d like healthier skin, are interested in dietary tweaks and homemade soaps, and have no aversion to goat’s milk and/or kefir, then this book is full of fascinating pointers.
Click here to check out The Good Skin Solution, and who knows, maybe you’ll find it’s the G.O.A.T!
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Gravitas – by Caroline Goyder
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A no-nonsense guide to (more than!) public speaking that isn’t just “tell jokes in your speech and imagine the audience naked”.
Because this isn’t just about speech-writing or speech delivery, so much as giving you important life skills. The kind that weren’t taught in school, but that nevertheless make a huge impact on success… whether you’re giving a presentation or hosting a party or negotiating a deal or just attending a social event. Or making a phonecall, even.
Whereas a lot of books of this kind treat “the audience” as a nebulous and purely responsive passive crowd of extras, Goyder does better. People are individuals, even if they’re all facing the same way for a moment. She works with that! She also teaches how to deal with not just hecklers, but also simply those people who sap your confidence and find fault with you and anything you do or say.b
Bottom line is: if you for whatever reason communicate with people, and would like them to think better of you, this is the book for you.
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We created a VR tool to test brain function. It could one day help diagnose dementia
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If you or a loved one have noticed changes in your memory or thinking as you’ve grown older, this could reflect typical changes that occur with ageing. In some cases though, it might suggest something more, such as the onset of dementia.
The best thing to do if you have concerns is to make an appointment with your GP, who will probably run some tests. Assessment is important because if there is something more going on, early diagnosis can enable prompt access to the right interventions, supports and care.
But current methods of dementia screening have limitations, and testing can be daunting for patients.
Our research suggests virtual reality (VR) could be a useful cognitive screening tool, and mitigate some of the challenges associated with current testing methods, opening up the possibility it may one day play a role in dementia diagnosis.
Where current testing is falling short
If someone is worried about their memory and thinking, their GP might ask them to complete a series of quick tasks that check things like the ability to follow simple instructions, basic arithmetic, memory and orientation.
These sorts of screening tools are really good at confirming cognitive problems that may already be very apparent. But commonly used screening tests are not always so good at detecting early and more subtle difficulties with memory and thinking, meaning such changes could be missed until they get worse.
A clinical neuropsychological assessment is better equipped to detect early changes. This involves a comprehensive review of a patient’s personal and medical history, and detailed assessment of cognitive functions, including attention, language, memory, executive functioning, mood factors and more. However, this can be costly and the testing can take several hours.
Testing is also somewhat removed from everyday experience, not directly tapping into activities of daily living.
Enter virtual reality
VR technology uses computer-generated environments to create immersive experiences that feel like real life. While VR is often used for entertainment, it has increasingly found applications in health care, including in rehabilitation and falls prevention.
Using VR for cognitive screening is still a new area. VR-based cognitive tests generally create a scenario such as shopping at a supermarket or driving around a city to ascertain how a person would perform in these situations.
Notably, they engage various senses and cognitive processes such as sight, sound and spatial awareness in immersive ways. All this may reveal subtle impairments which can be missed by standard methods.
VR assessments are also often more engaging and enjoyable, potentially reducing anxiety for those who may feel uneasy in traditional testing environments, and improving compliance compared to standard assessments.
Millions of people around the world have dementia.
pikselstock/ShutterstockMost studies of VR-based cognitive tests have explored their capacity to pick up impairments in spatial memory (the ability to remember where something is located and how to get there), and the results have been promising.
Given VR’s potential for assisting with diagnosis of cognitive impairment and dementia remains largely untapped, our team developed an online computerised game (referred to as semi-immersive VR) to see how well a person can remember, recall and complete everyday tasks. In our VR game, which lasts about 20 minutes, the user role plays a waiter in a cafe and receives a score on their performance.
To assess its potential, we enlisted more than 140 people to play the game and provide feedback. The results of this research are published across three recent papers.
Testing our VR tool
In our most recently published study, we wanted to verify the accuracy and sensitivity of our VR game to assess cognitive abilities.
We compared our test to an existing screening tool (called the TICS-M) in more than 130 adults. We found our VR task was able to capture meaningful aspects of cognitive function, including recalling food items and spatial memory.
We also found younger adults performed better in the game than older adults, which echoes the pattern commonly seen in regular memory tests.
Adults of a range of ages tried our computerised game.
pikselstock/ShutterstockIn a separate study, we followed ten adults aged over 65 while they completed the game, and interviewed them afterwards. We wanted to understand how this group – who the tool would target – perceived the task.
These seniors told us they found the game user-friendly and believed it was a promising tool for screening memory. They described the game as engaging and immersive, expressing enthusiasm to continue playing. They didn’t find the task created anxiety.
For a third study, we spoke to seven health-care professionals about the tool. Overall they gave positive feedback, and noted its dynamic approach to age-old diagnostic challenges.
However, they did flag some concerns and potential barriers to implementing this sort of tool. These included resource constraints in clinical practice (such as time and space to carry out the assessment) and whether it would be accessible for people with limited technological skills. There was also some scepticism about whether the tool would be an accurate method to assist with dementia diagnosis.
While our initial research suggests this tool could be a promising way to assess cognitive performance, this is not the same as diagnosing dementia. To improve the test’s ability to accurately detect those who likely have dementia, we’ll need to make it more specific for that purpose, and carry out further research to validate its effectiveness.
We’ll be conducting more testing of the game soon. Anyone interested in giving it a go to help with our research can register on our team’s website.
Joyce Siette, Research Theme Fellow in Health and Wellbeing, Western Sydney University and Paul Strutt, Senior Lecturer in Psychology, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Saffron For The Brain (& More)
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Saffron For The Brain (& More)
In yesterday’s edition of 10almonds, one of the items in the “health news from around the world” section was:
Clinical trial finds herbal medicine Sailuotong effective for brain health in older people
But, what is it?
❝SaiLuoTong (SLT) is a modern compound Chinese herbal medicine preparation in capsule form containing standardized extracts of Panax ginseng, Ginkgo biloba, and Crocus sativus L❞
We’ve written previously about ginseng and ginkgo biloba:
So, what’s this about Crocus sativus L.?
That is the plant better known as saffron. And, for all its wide availability (your local supermarket probably has at least a tiny amount in the spice section), there’s a reason we don’t see much of it:
❝Saffron blooms only once a year and should be collected within a very short duration. It is picked during 3–4 weeks in October-November. The method for the cultivation of saffron contributes greatly to its high price. According to some reports, this species is a sterile triploid and so does not produce fertile seeds. Germination can take 1–6 months at 18°C. It takes 3 years for plants to flower from seed.❞
Source: Crocus sativus L.: A comprehensive review
That’s fascinating, but what does it do for us?
Well, in the words of El Midaoui et al. (2022):
❝In the frame of a double-blind-placebo-controlled study, 30 mg per day supplementation with saffron for 16 weeks resulted in improved cognitive function in patients suffering from mild to moderate Alzheimer’s disease.
Moreover, the follow-up of this study in which the authors evaluated the effects of saffron (30 mg/day) for 22 weeks showed that saffron was as effective as donepezil in the treatment of mild-to-moderate Alzheimer’s disease❞
Read the full review: Saffron (Crocus sativus L.): A Source of Nutrients for Health and for the Treatment of Neuropsychiatric and Age-Related Diseases
Not just that, but it also has powerful antioxidant and anti-inflammatory properties beyond the brain (though the brain is where research has been most focused, due to its neuroprotective effects).
(this, too, is a full research review in its own right; we’re getting a lot of “bang for buck” on papers today)
And more?
Yes, and more. Lots more. To bullet-pointify even just the abstract from another research review:
- Saffron has been suggested to be effective in the treatment of a wide range of disorders including coronary artery diseases, hypertension, stomach disorders, dysmenorrhea and learning and memory impairments.
- In addition, different studies have indicated that saffron has anti-inflammatory, anti-atherosclerotic, antigenotoxic and cytotoxic activities. (This is all good; the cytotoxic activities are about killing cancer cells)
- Antitussive effects of stigmas and petals of C. sativus and its components, safranal and crocin have also been demonstrated.
- The anticonvulsant and anti-Alzheimer properties of saffron extract were shown in human and animal studies.
- The efficacy of C. sativus in the treatment of mild to moderate depression was also reported in clinical trial.
- Administration of C. sativus and its constituents increased glutamate and dopamine levels in the brain in a dose-dependent manner.
- It also interacts with the opioid system to reduce withdrawal syndrome.
- C. sativus and its components can be considered as promising agents in the treatment of nervous system disorders.
For more details on any of those items, see:
The effects of Crocus sativus (saffron) and its constituents on nervous system: a review
Is it safe?
The effective dose is 30mg/kg and the LD50 is more than 20g/kg, so yes, it’s very safe. Given the price of it, this also means that if you’re the size of this writer (a little over 70kg, or a little over 150lbs) to poison yourself effectively you’d need to consume about 1.4kg of saffron at a time, which would cost well over $6,000.
Where can I get it?
Your local supermarket probably has a tiny amount in the spice section, or you can get better prices buying it in “bulk” online. Here’s an example product on Amazon, for your convenience
Enjoy!
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