The Disordered Mind – by Dr. Eric Kandel
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We don’t generally include author bios in these reviews, but it’s worth mentioning that Dr. Kandel won the Nobel Prize in Physiology/Medicine, for studies related to the topics in this book.
The premise in this book is as per the subtitle: what unusual brains tell us about ourselves. He assumes that the reader has a “usual” brain, but if you don’t, then all is not lost, and in fact he probably talks about your brain in the book too.
Examining the brains of people with conditions ranging from autism to Alzheimer’s, schizophrenia to Parkinson’s, or even such common things as depression and anxiety and addiction, tells us a lot about what in our brain (anatomically and physiologically) is responsible for what, and how those things can be thrown out of balance.
By inference, that also tells us how to keep things from being thrown out of balance. Even if the genetic deck is stacked against you, there are still things that can be done to avoid actual disease. After all, famously, “genes load the gun, but lifestyle pulls the trigger”.
Dr. Kandel writes in a clear and lucid fashion, such that even the lay reader can quite comfortably learn about such things as prion-folding and inhibitory neurons and repressed transcription factors and more.
Bottom line: if you’d like to understand more about what goes wrong and how and why and what it means for your so-far-so-good healthy brain, this is the book for that.
Click here to check out The Disordered Mind, and understand more!
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If I’m diagnosed with one cancer, am I likely to get another?
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Receiving a cancer diagnosis is life-changing and can cause a range of concerns about ongoing health.
Fear of cancer returning is one of the top health concerns. And managing this fear is an important part of cancer treatment.
But how likely is it to get cancer for a second time?
Why can cancer return?
While initial cancer treatment may seem successful, sometimes a few cancer cells remain dormant. Over time, these cancer cells can grow again and may start to cause symptoms.
This is known as cancer recurrence: when a cancer returns after a period of remission. This period could be days, months or even years. The new cancer is the same type as the original cancer, but can sometimes grow in a new location through a process called metastasis.
Actor Hugh Jackman has gone public about his multiple diagnoses of basal cell carcinoma (a type of skin cancer) over the past decade.
The exact reason why cancer returns differs depending on the cancer type and the treatment received. Research is ongoing to identify genes associated with cancers returning. This may eventually allow doctors to tailor treatments for high-risk people.
What are the chances of cancer returning?
The risk of cancer returning differs between cancers, and between sub-types of the same cancer.
New screening and treatment options have seen reductions in recurrence rates for many types of cancer. For example, between 2004 and 2019, the risk of colon cancer recurring dropped by 31-68%. It is important to remember that only someone’s treatment team can assess an individual’s personal risk of cancer returning.
For most types of cancer, the highest risk of cancer returning is within the first three years after entering remission. This is because any leftover cancer cells not killed by treatment are likely to start growing again sooner rather than later. Three years after entering remission, recurrence rates for most cancers decrease, meaning that every day that passes lowers the risk of the cancer returning.
Every day that passes also increases the numbers of new discoveries, and cancer drugs being developed.
What about second, unrelated cancers?
Earlier this year, we learned Sarah Ferguson, Duchess of York, had been diagnosed with malignant melanoma (a type of skin cancer) shortly after being treated for breast cancer.
Although details have not been confirmed, this is likely a new cancer that isn’t a recurrence or metastasis of the first one.
Australian research from Queensland and Tasmania shows adults who have had cancer have around a 6-36% higher risk of developing a second primary cancer compared to the risk of cancer in the general population.
Who’s at risk of another, unrelated cancer?
With improvements in cancer diagnosis and treatment, people diagnosed with cancer are living longer than ever. This means they need to consider their long-term health, including their risk of developing another unrelated cancer.
Reasons for such cancers include different types of cancers sharing the same kind of lifestyle, environmental and genetic risk factors.
The increased risk is also likely partly due to the effects that some cancer treatments and imaging procedures have on the body. However, this increased risk is relatively small when compared with the (sometimes lifesaving) benefits of these treatment and procedures.
While a 6-36% greater chance of getting a second, unrelated cancer may seem large, only around 10-12% of participants developed a second cancer in the Australian studies we mentioned. Both had a median follow-up time of around five years.
Similarly, in a large US study only about one in 12 adult cancer patients developed a second type of cancer in the follow-up period (an average of seven years).
The kind of first cancer you had also affects your risk of a second, unrelated cancer, as well as the type of second cancer you are at risk of. For example, in the two Australian studies we mentioned, the risk of a second cancer was greater for people with an initial diagnosis of head and neck cancer, or a haematological (blood) cancer.
People diagnosed with cancer as a child, adolescent or young adult also have a greater risk of a second, unrelated cancer.
What can I do to lower my risk?
Regular follow-up examinations can give peace of mind, and ensure any subsequent cancer is caught early, when there’s the best chance of successful treatment.
Maintenance therapy may be used to reduce the risk of some types of cancer returning. However, despite ongoing research, there are no specific treatments against cancer recurrence or developing a second, unrelated cancer.
But there are things you can do to help lower your general risk of cancer – not smoking, being physically active, eating well, maintaining a healthy body weight, limiting alcohol intake and being sun safe. These all reduce the chance of cancer returning and getting a second cancer.
Sarah Diepstraten, Senior Research Officer, Blood Cells and Blood Cancer Division, Walter and Eliza Hall Institute and Terry Boyle, Senior Lecturer in Cancer Epidemiology, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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10 Ways To Delay Aging
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This is Dr. Colin Rose; he is a Senior Associate of the Royal Society of Medicine. He’s also a main contributor to EduScience, a programme funded by the E.U. which is designed to enhance the teaching and learning of science in schools in Europe.
His most recent work has been about aging—and how to delay it. We also reviewed his latest book, here:
Delay Ageing – by Dr. Colin Rose
So, what does he want us to know? The key lies in his compilation of ten ways in which we age on a cellular level, and what we can to do slow each one of those:
Damage to DNA accumulates
While DNA can get damaged without any external stimulus to cause that, there are a lot of modifiable factors that we can do to reduce DNA damage. The list is easy: if it causes cancer, it causes aging.
Thus, check out: Stop Cancer 20 Years Ago
Cells become senescent
Our cells are replaced all the time; some sooner than others, but all of them at some point. The problem occurs when cells are outliving their usefulness. If a cell becomes completely immortal, that is cancer, but happily most don’t. Nevertheless, having senescent (aging) cells in the body means that those senescent cells are what get copied forwards by mitosis, and our DNA becomes like a photocopy of a tattered old photocopy of a tattered old photocopy. Which, needless to say, is not good for our health. So, the best thing to do is to kill them earlier:
Yes, really: Fisetin: The Anti-Aging Assassin
Mitochondria become dysfunctional
Without properly functional mitochondria, no living human cell can do its job properly.
Options: 7 Ways To Boost Mitochondrial Health To Fight Disease
Beneficial genes are switched off, harmful genes are on
It’s easy to think of our genes as being immutable, but epigenetics means that our environment (amongst other factors) can mean that our gene expression changes.
Imagine it this way: your genes are a set of instructions for your body. However, your body will act or not on those instructions, depending on other factors. Hormones often play a big part in this; for example sex hormones tell the body which set of genetic instructions to read (and thus what kind of body to build/rebuild), and cortisol or oxytocin can tell the body which set of contingency plans to activate or suppress (respectively). A milder example is gray hair; genes have the program for it, but many other factors inform the body when, if, and how to do it.
Of more concern when it comes to aging is what goes on with more critical systems, such as the brain, in which the aforementioned DNA damage can cause unhelpful instructions to get interpreted, resulting in epigenetic changes that in turn facilitate age-related degeneration.
As to what can be done, see : Klotho: Unzipping The Genes Of Aging?
Stem cells become exhausted
Stem cells can become different kinds of cells, and thus they’re very useful for maintaining a healthy body. However, they get depleted with age. We can slow down the rate of loss, though; for example, intermittent fasting can help:
Per Dr. Li’s 5 Ways To Beat Cancer (And Other Diseases)
And for more detail, see:
Doctor’s Tip: Regeneration (stem cells) — one of your body’s five defense systems
(complete with lists of foods to eat or avoid for stem cell health)
Cells fail to communicate properly
Cells need to talk to each other constantly, to continue doing their jobs. We are one big organism, after all, and not a haphazard colony of the countless cells that constitute such. However, cell signalling gets worse with age, which in turn precipitates others age-related problems. Fortunately, there are nutrients that can improve cellular communication.
For example: PS, We Love You ← this is about phosphatidylserine, also called “PS”
Telomeres become shorter
These protective caps on our DNA suffer the wear-and-tear so that our DNA doesn’t have to. However, as they get shorter, the DNA can start suffering damage. For this reason, telomere length is considered one of the most “Gold Standard” markers of cellular aging.
Here’s what can be done for that: The Stress Prescription (Against Aging!)
The body fails to sense nutritional intake properly
This is mostly about insulin signalling (though problems can occur in other systems too, but we only have so much room here), so it’s important to take care of that.
See: Turn Back The Clock On Insulin Resistance
Proteins accumulate errors
This is due to DNA damage, of course, but there are specific things that can reduce protein error accumulation; see for example:
A quick fix – preventing protein errors extends lifespan
See also: Rapamycin Can Slow Aging By 20% (But Watch Out)
The microbiome becomes unbalanced
We at 10almonds often mention that gut health affects pretty much every other kind of health, and it’s true for aging as well. So, take care of that microbiome!
Here’s a primer: Gut Health 101
Want to know more about delaying aging beyond the cellular level?
Check out: Age & Aging: What Can (And Can’t) We Do About It?
Take care!
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Easy Ways To Fix Brittle, Dry, Wiry Hair
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Dr. Sam Ellis, a dermatologist, specializes in skin, hair, and nail care—and she’s here with professional knowledge:
Tackling the problem at the root
As we age, hair becomes less shiny, more brittle, coarse, wiry, or gray. More concerningly for many, hair thinning and shedding increases due to shortened growth phases and hormonal changes.
The first set of symptoms there are largely because sebum production decreases, leading to dry hair. It’s worth bearing in mind though, that factors like UV radiation, smoking, stress, and genetics contribute to hair aging too. So while we can’t do much about genetics, the modifiable factors are worth addressing.
Menopause and the corresponding “andropause” impact hair health, and hormonal shifts, not just aging, drive many hair changes. Which is good to know, because it means that HRT (mostly: topping up estrogen or testosterone as appropriate) can make a big difference. Additionally, topical/oral minoxidil and DHT blockers (such as finasteride or dutasteride) can boost hair density. These things come with caveats though, so do research any possible treatment plan before embarking on it, to be sure you are comfortable with all aspects of it—including that if you use minoxidil, while on the one hand it indeed works wonders, on the other hand, you’ll then have to keep using minoxidil for the rest of your life or your hair will fall out when you stop. So, that’s a commitment to be thought through before beginning.
Nutritional deficiencies (iron, zinc, vitamin D) and insufficient protein intake hinder hair growth, so ensure proper nutrition, with sufficient protein and micronutrients.
While we’re on the topic of “from the inside” things: take care to manage stress healthily, as stress negatively affects hair health.
Now, as for “from the outside”…
Dr. Ellis recommends moisturizing shampoos/conditioners; Virtue and Dove brands she mentions positively. She also recommends bond repair products (such as K18 and Olaplex) that restore hair integrity, and heat protectants (she recommends: Unite 7 Seconds) as well as hair oils in general that improve hair condition.
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
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Protein-Stuffed Bell Peppers
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Hot, tasty, meaty, and vegan! You can have it all. And with this recipe, you’ll want to err on the side of overcatering, because everyone will want some. As for healthiness, we’ve got lycopene, lutein and a stack of other carotenoids, a plethora of other polyphenols, and a veritable garden party of miscellaneous phytochemicals otherwise categorized. It’s full of protein, fiber, vitamins, and minerals, relatively low-fat but the fats present are healthy. It’s antidiabetic, anti-CVD, anticancer, antineurodegeneration, and basically does everything short of making you sing well too.
You will need
- 4 large bell peppers, tops sliced open and innards removed (keep the tops; we will put them back on later)
- 1 cup quinoa, rinsed
- 1 can black beans, drained and rinsed
- 1 small zucchini (diced)
- 1 small eggplant (diced)
- 1 small red onion (finely chopped)
- ½ bulb garlic, minced*
- 1 tbsp tomato paste
- 1 tbsp chia seeds
- 2 tbsp extra virgin olive oil
- 2 tsp dried basil
- 2 tsp dried thyme
- 2 tsp black pepper, coarse ground
- 2 tsp ground cumin
- 1 tsp smoked paprika
- ½ tsp MSG or 1 tsp low-sodium salt
*we always try to give general guidelines with regard to garlic, but the reality is it depends on the size and strength of your local garlic, which we cannot account for, as well as your personal taste. Same situation with hot peppers of various kinds. This writer (it’s me, hi) would generally use about 2x the garlic and pepper advised in our recipes. All we can say is: follow your heart!
Method
(we suggest you read everything at least once before doing anything)
1) Combine the quinoa with the chia seeds, and cook as per normal cooking of quinoa (i.e. bring to a boil and then simmer for about 15 minutes until cooked and fluffy). Drain and rinse (carefully, without losing the chia seeds; use a sieve).
2) Heat your grill to a high heat. Combine the zucchini, eggplant, onion, garlic, and olive oil in a big bowl and mix well, ensuring an even distribution of the oil. Now also add the herbs and spices (including the MSG or salt) and mix well again. Put them all to grill for about 5 minutes, turning as necessary.
3) Heat your oven to a high heat. Take the grilled vegetables and combine them in a bowl with the quinoa-and-chia, and the black beans, as well as the tomato paste. Mix everything well. Spoon the mixture generously into the bell peppers, replacing the tops (it can be loosely), and bake for about 5–10 minutes, keeping an eye on them; you want them to be lightly charred, but not a burnt offering.
4) Serve! This dish works well as a light lunch or as part of a larger spread.
(before going in the oven with lids replaced to keep moisture in)
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- A Spectrum Of Specialties: Which Color Bell Peppers To Pick?
- Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- The Tiniest Seeds With The Most Value: If You’re Not Taking Chia, You’re Missing Out
- Chickpeas vs Black Beans – Which is Healthier?
- The Many Health Benefits Of Garlic
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
Take care!
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Recognize The Early Symptoms Of Parkinson’s Disease
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Parkinson’s disease is a degenerative condition with wide-reaching implications for health. While there is currently no known cure, there are treatments, so knowing about it sooner rather than later is important.
Spot The Signs
There are two main kinds of symptoms, motor and non-motor.
Motor symptoms include:
- trembling that occurs when muscles are relaxed; often especially visible in the fingers
- handwriting changes—not just because of the above, but also often getting smaller
- blank expression, on account of fewer instruction signals getting through to the face
- frozen gait—especially difficulty starting walking, and a reduced arm swing
Non-motor symptoms include:
- loss of sense of smell—complete, or a persistent reduction of
- sleepwalking, or sleep-talking, or generally acting out dreams while asleep
- constipation—on an ongoing basis
- depression/anxiety, especially if there was no prior history of these conditions
For more detail on each of these, as well as what steps you might want to take, check out what Dr. Luis Zayas has to say:
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Want to learn more?
You might also like to read:
Citicoline vs Parkinson’s (And More)
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The Not-So-Sweet Science Of Sugar Addiction
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One
LumpMechanism Of Addiction Or Two?
In Tuesday’s newsletter, we asked you to what extent, if any, you believe sugar is addictive; we got the above-depicted, below-described, set of responses:
- About 47% said “Sugar is chemically addictive, comparable to alcohol”
- About 34% said “Sugar is chemically addictive, comparable to cocaine”
- About 11% said “Sugar is not addictive; that’s just excuse-finding hyperbole”
- About 9% said “Sugar is a behavioral addiction, comparable to video gaming”
So what does the science say?
Sugar is not addictive; that’s just excuse-finding hyperbole: True or False?
False, by broad scientific consensus. As ever, the devil’s in the
detailsdefinitions, but while there is still discussion about how best to categorize the addiction, the scientific consensus as a whole is generally: sugar is addictive.That doesn’t mean scientists* are a hive mind, and so there will be some who disagree, but most papers these days are looking into the “hows” and “whys” and “whats” of sugar addiction, not the “whether”.
*who are also, let us remember, a diverse group including chemists, neurobiologists, psychologists, social psychologists, and others, often collaborating in multidisciplinary teams, each with their own focus of research.
Here’s what the Center of Alcohol and Substance Use Studies has to say, for example:
Sugar Addiction: More Serious Than You Think
Sugar is a chemical addiction, comparable to alcohol: True or False?
True, broadly, with caveats—for this one, the crux lies in “comparable to”, because the neurology of the addiction is similar, even if many aspects of it chemically are not.
In both cases, sugar triggers the release of dopamine while also (albeit for different chemical reasons) having a “downer” effect (sugar triggers the release of opioids as well as dopamine).
Notably, the sociology and psychology of alcohol and sugar addictions are also similar (both addictions are common throughout different socioeconomic strata as a coping mechanism seeking an escape from emotional pain).
See for example in the Journal of Psychoactive Drugs:
On the other hand, withdrawal symptoms from heavy long-term alcohol abuse can kill, while withdrawal symptoms from sugar are very much milder. So there’s also room to argue that they’re not comparable on those grounds.
Sugar is a chemical addiction, comparable to cocaine: True or False?
False, broadly. There are overlaps! For example, sugar drives impulsivity to seek more of the substance, and leads to changes in neurobiological brain function which alter emotional states and subsequent behaviours:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
However!
Cocaine triggers a release of dopamine (as does sugar), but cocaine also acts directly on our brain’s ability to remove dopamine, serotonin, and norepinephrine:
The Neurobiology of Cocaine Addiction
…meaning that in terms of comparability, they (to use a metaphor now, not meaning this literally) both give you a warm feeling, but sugar does it by turning up the heating a bit whereas cocaine does it by locking the doors and burning down the house. That’s quite a difference!
Sugar is a behavioral addiction, comparable to video gaming: True or False?
True, with the caveat that this a “yes and” situation.
There are behavioral aspects of sugar addiction that can reasonably be compared to those of video gaming, e.g. compulsion loops, always the promise of more (without limiting factors such as overdosing), anxiety when the addictive element is not accessible for some reason, reduction of dopaminergic sensitivity leading to a craving for more, etc. Note that the last is mentioning a chemical but the mechanism itself is still behavioral, not chemical per se.
So, yes, it’s a behavioral addiction [and also arguably chemical in the manners we’ve described earlier in this article].
For science for this, we refer you back to:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
Want more?
You might want to check out:
Beating Food Addictions: When It’s More Than “Just” Cravings
Take care!
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