
Sweet Spot for Brain Health – by Dr. Sui Wong
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At 10almonds we often mention that “what’s good for the heart is good for the brain”, but at least in part, it’s because (as this book makes very clear), “what’s good for the blood is good for the brain”. After all, our brain uses about 25% of our energy, and that energy is delivered there by the blood. And if it doesn’t get enough nutrients, oxygen, etc, and detritus isn’t taken away, then problems happen.
Dr. Wong discusses Alzheimer’s as heavily driven by metabolic problems such as diabetes and even pre-diabetes, and sets out to put in our hands the guidebook to not only not doing that, but also, actually making sure our brain gets proper nourishment without delivering that as intermittent sugar spikes because we opted for a something with very fast-acting carbs to perk us up energetically.
More than most books on the topic, she talks a lot about the neurobiology of glucose metabolism, so that’s something that really sets this book apart from many of its genre.
The style is narrative, explaining the body’s processes in a clear fashion, without skimping on science. There are definitely words that your average layperson might not know, but they’re explained as we go, and there are frequent recaps of what we learned previously, making for ultimately easy reading.
After all the information is given, there’s also a guided “12-week challenge” with a theme-of-the-week for each week, to integrate a new lifestyle adjustment each week in a progressive fashion so that without needing to drastically change many things at once, we get where we need to be in terms of healthy habits.
Bottom line: if you’d like to do right by your brain and while you’re at it say goodbye to blood sugar highs and lows, then this book is an excellent guide for that.
Click here to check out Sweet Spot For Brain Health, and enjoy a consistently-energized brain!
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Avocado vs Olives – Which is Healthier?
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Our Verdict
When comparing avocado to olives, we picked the avocado.
Why?
Both are certainly great! And when it comes to their respective oils, olive oil wins out as it retains many micronutrients that avocado oil loses. But, in their whole form, avocado beats olive:
In terms of macros, avocado has more protein, carbs, fiber, and (healthy) fats. Simply, it’s more nationally-dense than the already nutritionally-dense food that is olives.
When it comes to vitamins, olives are great but avocados really shine; avocado has more of vitamins B1, B2, B3, B5, B6, B7 B9, C, E, K, and choline, while olives boast only more vitamin A.
In the category of minerals, things are closer to even; avocado has more magnesium, manganese, phosphorus, potassium, and zinc, while olives have a lot more calcium, copper, iron, and selenium. Still, a marginal victory for avocado here.
In short, this is another case of one very healthy food looking bad by standing next to an even better one, so by all means enjoy both—if you’re going to pick one though, avocado is the more nutritionally dense.
Want to learn more?
You might like to read:
Avocado Oil vs Olive Oil – Which is Healthier? ← when made into oils, olive oil wins, but avocado oil is still a good option too
Take care!
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Heal Your Stressed Brain
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Rochelle Walsh, therapist, explains the problem and how to fix it:
Not all brain damage is from the outside
Long-term stress and burnout cause brain damage; it’s not just a mindset issue—it impacts the brain physiologically. To compound matters, it also increases the risk of neurodegenerative diseases. While the brain can indeed grow new neurons and regenerate itself, chronic stress damages specific regions, and inhibits that.
There are some effects of chronic stress that can seem positive—the amygdalae and hypothalamus are seen to grow larger and stronger, for instance—but this is, unfortunately, “all the better to stress you with”. In compensation for this, chronic stress deprioritizes the pre-frontal cortex and hippocampi, so there goes your reasoning and memory.
This often results in people not managing chronic stress well. Just like a weak heart and lungs might impede the exercise that could make them stronger, the stressed brain is not good at permitting you to do the things that would heal it—preferring to keep you on edge all day, worrying and twitchy, mind racing and body tense. It also tends to lead to autoimmune diseases, due to the increased inflammation (because the body’s threat-detection system as at “jumping at own shadow” levels so it’s deploying every defense it has, including completely inappropriate ones).
Notwithstanding the “Heal Your Stressed Brain” thumbnail, she doesn’t actually go into this in detail and bids us sign up for her masterclass. We at 10almonds however like to deliver, so you can find useful advice and free resources in our links-drop at the bottom of this article.
Meanwhile, if you’d like to hear more about the neurological woes described above, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
- Meditation That You’ll Actually Enjoy
- How To Manage/Reduce Chronic Stress
- Lower Your Cortisol! (Here’s Why & How)
- How Healthy People Regulate Their Emotions
- Sleep: Yes, You Really Do Still Need It!
- Give Your Adrenal Glands A Chance
- The Stress Prescription (Against Aging!)
Take care!
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Running: Getting Started – by Jeff Galloway
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.
Superficially, running is surely one of the easiest sports to get into, for most people. You put one foot in front of the other, repeat, and pick up the pace.
However, many people do not succeed. They head out of the door (perhaps on January the first), push themselves a little, experience runner’s high, think “this is great”, and the next day wake up with some minor aches and no motivation. This book is here to help you bypass that stage.
Jeff Galloway has quite a series of books, but the others seem derivative of this one. So, what makes this one special?
It’s quite comprehensive; it covers (as the title promises) getting started, setting yourself up for success, finding what level your ability is at safely rather than guessing and overdoing it, and building up from there.
He also talks about what kit you’ll want; this isn’t just about shoes, but even “what to wear when the weather’s not good” and so forth; he additionally shares advice about diet, exercise on non-running days, body maintenance (stretching and strengthening), troubleshooting aches and pains, and running well into one’s later years.
Bottom line: if you’d like to take up running but it seems intimidating (perhaps for reasons you can’t quite pin down), this book will take care of all those things, and indeed get you “up and running”.
Click here to check out Running: Getting Started, and get started!
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Water Fluoridation, Atheroma, & More
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝I watched a documentary recently on Fluoride in our drinking water & the dangers of it. Why are we poisoning our water?❞
This is a great question, and it certainly is controversial. It sounds like the documentary you watched was predominantly or entirely negative, but there’s a lot of science to back both sides of this, and it’s not even that the science is contradictory (it’s not). It’s that what differs is people’s opinions about whether benefiting one thing is worth creating a risk to another, and that means looking at:
- What is the risk associated with taking no action (error of omission)?
- What is the risk associated with taking an action (error of commission)?
The whole topic is worth a main feature, but to summarize a few key points:
- Water fluoridation is considered good for the prevention of dental cavities
- Water fluoridation aims to deliver fluoride and doses far below dangerous levels
- This requires working on consumer averages, though
- ”Where do we put the safety margins?” is to some extent a subjective question, in terms of trading off one aspect of health for another
- Too much fluoride can also be bad for the teeth (at least cosmetically, creating little white* spots)
- Detractors of fluoride tend to mostly be worried about neurological harm
- However, the doses in public water supplies are almost certainly far below the levels required to cause this harm.
- That said, again this is working on consumer averages, though.
- However, the doses in public water supplies are almost certainly far below the levels required to cause this harm.
- A good guide is: watch your teeth! Those white* spots will be “the canary in the coal mine” of more serious harm that could potentially come from higher levels due to overconsumption of fluorine.
*Teeth are not supposed to be pure white. The “Hollywood smile” is a lie. Teeth are supposed to be a slightly off-white, ivory color. Anything whiter than that is adding something else that shouldn’t be there, or stripping something off that should be there.
❝How does your diet change clean out your arteries of the bad cholesterol?❞
There’s good news and bad news here, and they can both be delivered with a one-word reply:
Slowly.
Or rather: what’s being cleaned out is mostly not the LDL (bad) cholesterol, but rather, the result of that.
When our diet is bad for cardiovascular health, our arteries get fatty deposits on their walls. Cholesterol gets stuck here too, but that’s not the main physical problem.
Our body’s natural defenses come into action and try to clean it up, but they (for example macrophages, a kind of white blood cell that consumes invaders and then dies, before being recycled by the next part of the system) often get stuck and become part of the buildup (called atheroma), which can lead to atherosclerosis and (if calcium levels are high) hardening of the arteries, which is the worst end of this.
This can then require medical attention, precisely because the body can’t remove it very well—especially if you are still maintaining a heart-unhealthy diet, thus continuing to add to the mess.
However, if it is not too bad yet, yes, a dietary change alone will reverse this process. Without new material being added to the arterial walls, the body’s continual process of rejuvenation will eventually fix it, given time (free from things making it worse) and resources.
In fact, your arteries can be one of the quickest places for your body to make something better or worse, because the blood is the means by which the body moves most things (good or bad) around the body.
All the more reason to take extra care of it, since everything else depends on it!
You might also like our previous main feature:
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How old’s too old to be a doctor? Why GPs and surgeons over 70 may need a health check to practise
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A growing number of complaints against older doctors has prompted the Medical Board of Australia to announce today that it’s reviewing how doctors aged 70 or older are regulated. Two new options are on the table.
The first would require doctors over 70 to undergo a detailed health assessment to determine their current and future “fitness to practise” in their particular area of medicine.
The second would require only general health checks for doctors over 70.
A third option acknowledges existing rules requiring doctors to maintain their health and competence. As part of their professional code of conduct, doctors must seek independent medical and psychological care to prevent harming themselves and their patients. So, this third option would maintain the status quo.
PeopleImages.com – Yuri A/Shutterstock Haven’t we moved on from set retirement ages?
It might be surprising that stricter oversight of older doctors’ performance is proposed now. Critics of mandatory retirement ages in other fields – for judges, for instance – have long questioned whether these rules are “still valid in a modern society”.
However, unlike judges, doctors are already required to renew their registration annually to practise. This allows the Medical Board of Australia not only to access sound data about the prevalence and activity of older practitioners, but to assess their eligibility regularly and to conduct performance assessments if and when they are needed.
What has prompted these proposals?
This latest proposal identifies several emerging concerns about older doctors. These are grounded in external research about the effect of age on doctors’ competence as well as the regulator’s internal data showing surges of complaints about older doctors in recent years.
Studies of medical competence in ageing doctors show variable results. However, the Medical Board of Australia’s consultation document emphasises studies of neurocognitive loss. It explains how physical and cognitive impairment can lead to poor record-keeping, improper prescribing, as well as disruptive behaviour.
The other issue is the number of patient complaints against older doctors. These “notifications” have surged in recent years, as have the number of disciplinary actions against older doctors.
In 2022–2023, the Medical Board of Australia took disciplinary action against older doctors about 1.7 times more often than for doctors under 70.
In 2023, notifications against doctors over 70 were 81% higher than for the under 70s. In that year, patients sent 485 notifications to the Medical Board of Australia about older doctors – up from 189 in 2015.
While older doctors make up only about 5.3% of the doctor workforce in Australia (less than 1% over 80), this only makes the high numbers of complaints more starkly disproportionate.
It’s for these reasons that the Medical Board of Australia has determined it should take further regulatory action to safeguard the health of patients.
So what distinguishes the two new proposed options?
The “fitness to practise” assessment option would entail a rigorous assessment of doctors over 70 based on their specialisation. It would be required every three years after the age of 70 and every year after 80.
Surgeons, for example, would be assessed by an independent occupational physician for dexterity, sight and the ability to give clinical instructions.
Importantly, the results of these assessments would usually be confidential between the assessor and the doctor. Only doctors who were found to pose a substantial risk to the public, which was not being managed, would be obliged to report their health condition to the Medical Board of Australia.
The second option would be a more general health check not linked to the doctor’s specific role. It would occur at the same intervals as the “fitness to practise” assessment. However, its purpose would be merely to promote good health-care decision-making among health practitioners. There would be no general obligation on a doctor to report the results to the Medical Board of Australia.
In practice, both of these proposals appear to allow doctors to manage their own general health confidentially.
Older surgeons could be independently assessed for dexterity, sight and the ability to give clinical instructions. worradirek/Shutterstock The law tends to prioritise patient safety
All state versions of the legal regime regulating doctors, known as the National Accreditation and Registration Scheme, include a “paramountcy” provision. That provision basically says patient safety is paramount and trumps all other considerations.
As with legal regimes regulating childcare, health practitioner regulation prioritises the health and safety of the person receiving the care over the rights of the licensed professional.
Complicating this further, is the fact that a longstanding principle of health practitioner regulation has been that doctors should not be “punished” for errors in practice.
All of this means that reforms of this nature can be difficult to introduce and that the balance between patient safety and professional entitlements must be handled with care.
Could these proposals amount to age discrimination?
It is premature to analyse the legal implications of these proposals. So it’s difficult to say how these proposals interact with Commonwealth age- and other anti-discrimination laws.
For instance, one complication is that the federal age discrimination statute includes an exemption to allow “qualifying bodies” such as the Medical Board of Australia to discriminate against older professionals who are “unable to carry out the inherent requirements of the profession, trade or occupation because of his or her age”.
In broader terms, a licence to practise medicine is often compared to a licence to drive or pilot an aircraft. Despite claims of discrimination, New South Wales law requires older drivers to undergo a medical assessment every year; and similar requirements affect older pilots and air traffic controllers.
Where to from here?
When changes are proposed to health practitioner regulation, there is typically much media attention followed by a consultation and behind-the-scenes negotiation process. This issue is no different.
How will doctors respond to the proposed changes? It’s too soon to say. If the proposals are implemented, it’s possible some older doctors might retire rather than undergo these mandatory health assessments. Some may argue that encouraging more older doctors to retire is precisely the point of these proposals. However, others have suggested this would only exacerbate shortages in the health-care workforce.
The proposals are open for public comment until October 4.
Christopher Rudge, Law lecturer, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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How To Grow New Brain Cells (At Any Age)
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How To Grow New Brain Cells (At Any Age)
It was long believed that brain growth could not occur later in life, due to expending our innate stock of pluripotent stem cells. However, this was mostly based on rodent studies.
Rodent studies are often used for brain research, because it’s difficult to find human volunteers willing to have their brains sliced thinly (so that the cells can be viewed under a microscope) at the end of the study.
However, neurobiologist Dr. Maura Boldrini led a team that did a lot of research by means of autopsies on the hippocampi of (previously) healthy individuals ranging in age from 14 to 79.
What she found is that while indeed the younger subjects did predictably have more young brain cells (neural progenitors and immature neurons), even the oldest subject, at the age of 79, had been producing new brain cells up until death.
Read her landmark study: Human Hippocampal Neurogenesis Persists throughout Aging
There was briefly a flurry of news articles about a study by Dr. Shawn Sorrels that refuted this, however, it later came to light that Dr. Sorrels had accidentally destroyed his own evidence during the cell-fixing process—these things happen; it’s just unfortunate the mistake was not picked up until after publication.
A later study by a Dr. Elena Moreno-Jiménez fixed this flaw by using a shorter fixation time for the cell samples they wanted to look at, and found that there were tens of thousands of newly-made brain cells in samples from adults ranging from 43 to 87.
Now, there was still a difference: the samples from the youngest adult had 30% more newly-made braincells than the 87-year-old, but given that previous science thought brain cell generation stopped in childhood, the fact that an 87-year-old was generating new brain cells 30% less quickly than a 43-year-old is hardly much of a criticism!
As an aside: samples from patients with Alzheimer’s also had a 30% reduction in new braincell generation, compared to samples from patients of the same age without Alzheimer’s. But again… Even patients with Alzheimer’s were still growing some new brain cells.
Read it for yourself: Adult hippocampal neurogenesis is abundant in neurologically healthy subjects and drops sharply in patients with Alzheimer’s disease
Practical advice based on this information
Since we can do neurogenesis at any age, but the rate does drop with age (and drops sharply in the case of Alzheimer’s disease), we need to:
Feed your brain. The brain is the most calorie-consuming organ we have, by far, and it’s also made mostly of fat* and water. So, get plenty of healthy fats, and get plenty of water.
*Fun fact: while depictions in fiction (and/or chemically preserved brains) may lead many to believe the brain has a rubbery consistency, the untreated brain being made of mostly fat and water gives it more of a blancmange-like consistency in reality. That thing is delicate and spatters easily. There’s a reason it’s kept cushioned inside the strongest structure of our body, far more protected than anything in our torso.
Exercise. Specifically, exercise that gets your blood pumping. This (as our earlier-featured video today referenced) is one of the biggest things we can do to boost Brain-Derived Neurotrophic Factor, or BDNF.
Here be science: Brain-Derived Neurotrophic Factor, Depression, and Physical Activity: Making the Neuroplastic Connection
However, that’s not the only way to increase BDNF; another is to enjoy a diet rich in polyphenols. These can be found in, for example, berries, tea, coffee, and chocolate. Technically those last two are also botanically berries, but given how we usually consume them, and given how rich they are in polyphenols, they merit a special mention.
See for example: Effects of nutritional interventions on BDNF concentrations in humans: a systematic review
Some supplements can help neuron (re)growth too, so if you haven’t already, you might want to check out our previous main feature on lion’s mane mushroom, a supplement which does exactly that.
For those who like videos, you may also enjoy this TED talk by neuroscientist Dr. Sandrine Thuret:
Prefer text? Click here to read the transcript
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