The End of Alzheimer’s – by Dr. Dale Bredesen
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This one didn’t use the “The New Science Of…” subtitle that many books do, and this one actually is a “new science of”!
Which is exciting, and/but comes with the caveat that the overall protocol itself is still undergoing testing, but the results so far are promising. The constituent parts of the protocol are for the most already well-established, but have not previously been put together in this way.
Dr. Bredesen argues that Alzheimer’s Disease is not one condition but three (medical consensus agrees at least that it is a collection of conditions, but different schools of thought slice them differently), and outlines 36 metabolic factors that are implicated, and the good news is, most of them are within our control.
Since there’s a lot to put together, he also offers many workarounds and “crutches”, making for very practical advice.
The style of the book is on the hard end of pop-science, that is to say while the feel and tone is very pop-sciencey, there are nevertheless a lot of words that you might know but your spellchecker probably wouldn’t. He does explain everything along the way, but this does mean that if you’re not already well-versed, you can’t just dip in to a later point without reading the earlier parts.
Bottom line: even if you only implement half the advice in this book, you’ll be doing your long-term cognitive health a huge favor.
Click here to check out The End of Alzheimer’s, and keep cognitive decline at bay!
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Lycopene’s Benefits For The Gut, Heart, Brain, & More
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What Doesn’t Lycopene Do?
Lycopene is an antioxidant carotenoid famously found in tomatoes; it actually appears in even higher levels in watermelon, though. If you are going to get it from tomato, know that cooking improves the lycopene content rather than removing it (watermelon, on the other hand, can be enjoyed as-is and already has the higher lycopene content).
Antioxidant properties
Let’s reiterate the obvious first, for the sake of being methodical and adding a source. Lycopene is a potent antioxidant with multiple health benefits:
Lycopene: A Potent Antioxidant with Multiple Health Benefits
…and as such, it does all the things you might reasonably expect and antioxidant to do. For example…
Anti-inflammatory properties
In particular, it regulates macrophage activity, reducing inflammation while improving immune response:
Lycopene Regulates Macrophage Immune Response through the Autophagy Pathway Mediated by RIPK1
As can be expected of most antioxidants and anti-inflammatory agents, it also has…
Anticancer properties
Scientific papers tend to be “per cancer type”, so we’re just going to give one example, but there’s pretty much evidence for its utility against most if not all types of cancer. We’re picking prostate cancer though, as it’s one that’s been studied the most in the context of lycopene intake—in this study, for example, it was found that men who enjoyed at least two servings of lycopene-rich tomato sauce per week were 30% less likely to develop prostate cancer than those who didn’t:
Dietary lycopene intake and risk of prostate cancer defined by ERG protein expression
If you’d like to see something more general, however, then check out:
Potential Use of Tomato Peel, a Rich Source of Lycopene, for Cancer Treatment
It also fights Candida albicans
Ok, this is not (usually) so life-and-death as cancer, but reducing our C. albicans content (specifically: in our gut) has a lot of knock-on effects for other aspects of our health, so this isn’t one to overlook:
The title does not make this clear, but yes: this does mean it has an antifungal effect. We mention this because often cellular apoptosis is good for an overall organism, but in this case, it simply kills the Candida.
It’s good for the heart
A lot of studies focus just on triglyceride markers (which lycopene improves), but more tellingly, here’s a 10-year observational study in which diets rich in lycopene were associated to a 17–26% lower risk of heart disease:
Relationship of lycopene intake and consumption of tomato products to incident CVD
…and a 39% overall reduced mortality in, well, we’ll let the study title tell it:
…which means also:
It’s good for the brain
As a general rule of thumb, what’s good for the heart is good for the brain (because the brain needs healthy blood flow to stay healthy, and is especially vulnerable when it doesn’t get that), and in this case that rule of thumb is also borne out by the post hoc evidence, specifically yielding a 31% decreased incidence of stroke:
Dietary and circulating lycopene and stroke risk: a meta-analysis of prospective studies
Is it safe?
As a common food product, it is considered very safe.
If you drink nothing but tomato juice all day for a long time, your skin will take on a reddish hue, which will go away if you stop getting all your daily water intake in tomato juice.
In all likelihood, even if you went to extremes, you would get sick from the excess of vitamin A (generally present in the same foods) sooner than you’d get sick from the excess of lycopene.
Want to try some?
We don’t sell it, and also we recommend simply enjoying tomatoes, watermelons, etc, but if you do want a supplement, here’s an example product on Amazon
Enjoy!
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I want to eat healthily. So why do I crave sugar, salt and carbs?
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We all want to eat healthily, especially as we reset our health goals at the start of a new year. But sometimes these plans are sabotaged by powerful cravings for sweet, salty or carb-heavy foods.
So why do you crave these foods when you’re trying to improve your diet or lose weight? And what can you do about it?
There are many reasons for craving specific foods, but let’s focus on four common ones:
1. Blood sugar crashes
Sugar is a key energy source for all animals, and its taste is one of the most basic sensory experiences. Even without specific sweet taste receptors on the tongue, a strong preference for sugar can develop, indicating a mechanism beyond taste alone.
Neurons responding to sugar are activated when sugar is delivered to the gut. This can increase appetite and make you want to consume more. Giving into cravings also drives an appetite for more sugar.
In the long term, research suggests a high-sugar diet can affect mood, digestion and inflammation in the gut.
While there’s a lot of variation between individuals, regularly eating sugary and high-carb foods can lead to rapid spikes and crashes in blood sugar levels. When your blood sugar drops, your body can respond by craving quick sources of energy, often in the form of sugar and carbs because these deliver the fastest, most easily accessible form of energy.
2. Drops in dopamine and serotonin
Certain neurotransmitters, such as dopamine, are involved in the reward and pleasure centres of the brain. Eating sugary and carb-rich foods can trigger the release of dopamine, creating a pleasurable experience and reinforcing the craving.
Serotonin, the feel-good hormone, suppresses appetite. Natural changes in serotonin can influence daily fluctuations in mood, energy levels and attention. It’s also associated with eating more carb-rich snacks in the afternoon.
Low carb diets may reduce serotonin and lower mood. However, a recent systematic review suggests little association between these diets and risk for anxiety and depression.
Compared to men, women tend to crave more carb rich foods. Feeling irritable, tired, depressed or experiencing carb cravings are part of premenstrual symptoms and could be linked to reduced serotonin levels.
3. Loss of fluids and drops in blood sugar and salt
Sometimes our bodies crave the things they’re missing, such as hydration or even salt. A low-carb diet, for example, depletes insulin levels, decreasing sodium and water retention.
Very low-carb diets, like ketogenic diets, induce “ketosis”, a metabolic state where the body switches to using fat as its primary energy source, moving away from the usual dependence on carbohydrates.
Ketosis is often associated with increased urine production, further contributing to potential fluid loss, electrolyte imbalances and salt cravings.
4. High levels of stress or emotional turmoil
Stress, boredom and emotional turmoil can lead to cravings for comfort foods. This is because stress-related hormones can impact our appetite, satiety (feeling full) and food preferences.
The stress hormone cortisol, in particular, can drive cravings for sweet comfort foods.
A 2001 study of 59 premenopausal women subjected to stress revealed that the stress led to higher calorie consumption.
A more recent study found chronic stress, when paired with high-calorie diet, increases food intake and a preference for sweet foods. This shows the importance of a healthy diet during stress to prevent weight gain.
What can you do about cravings?
Here are four tips to curb cravings:
1) don’t cut out whole food groups. Aim for a well-balanced diet and make sure you include:
- sufficient protein in your meals to help you feel full and reduce the urge to snack on sugary and carb-rich foods. Older adults should aim for 20–40g protein per meal with a particular focus on breakfast and lunch and an overall daily protein intake of at least 0.8g per kg of body weight for muscle health
- fibre-rich foods, such as vegetables and whole grains. These make you feel full and stabilise your blood sugar levels. Examples include broccoli, quinoa, brown rice, oats, beans, lentils and bran cereals. Substitute refined carbs high in sugar like processed snack bars, soft drink or baked goods for more complex ones like whole grain bread or wholewheat muffins, or nut and seed bars or energy bites made with chia seeds and oats
2) manage your stress levels. Practise stress-reduction techniques like meditation, deep breathing, or yoga to manage emotional triggers for cravings. Practising mindful eating, by eating slowly and tuning into bodily sensations, can also reduce daily calorie intake and curb cravings and stress-driven eating
3) get enough sleep. Aim for seven to eight hours of quality sleep per night, with a minimum of seven hours. Lack of sleep can disrupt hormones that regulate hunger and cravings
4) control your portions. If you decide to indulge in a treat, control your portion size to avoid overindulging.
Overcoming cravings for sugar, salt and carbs when trying to eat healthily or lose weight is undoubtedly a formidable challenge. Remember, it’s a journey, and setbacks may occur. Be patient with yourself – your success is not defined by occasional cravings but by your ability to manage and overcome them.
Hayley O’Neill, Assistant Professor, Faculty of Health Sciences and Medicine, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Foam Rolling – by Karina Inkster
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If you’ve ever bought a foam roller only to place it under your lower back once and then put it somewhere for safekeeping and never use it again, this book will help fix that.
Karina Inkster (what a cool name) is a personal trainer, and the book also features tips and advice from physiotherapists and sports medicine specialist doctors too, so all bases are well and truly covered.
This is not, in case you’re wondering, a book that could have been a pamphlet, with photos of the exercises and one-liner explanation and that’s it. Rather, Inkster takes us through the anatomy and physiology of what’s going on, so that we can actually use this thing correctly and get actual noticeable improvements to our health from it—as promised in the subtitle’s mention of “for massage, injury prevention, and core strength”. To be clear, a lot of it is also about soft tissue mobilization, and keeping our fascia healthy (an oft-underestimated aspect of general mobility).
We would mention that since the photos are pleasantly colorful (like those on the cover) and this adds to the clarity, we’d recommend springing for the (quite inexpensive) physical copy, rather than a Kindle edition (if your e-reader is a monochrome e-ink device like this reviewer’s, anyway).
Bottom line: this book will enable your foam roller to make a difference to your life.
Click here to check out Foam Rolling, and get rolling (correctly)!
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Cannellini Protein Gratin
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A healthier twist on a classic, the protein here comes not only from the cannellini beans, but also from (at the risk of alienating French readers) a béchamel sauce that is not made using the traditional method involving flour and butter, but instead, has cashew protein as a major constituent.
You will need
- 3 medium potatoes, chopped (no need to peel them; you can if you want, but many of the nutrients are there and they’re not a problem for the recipe)
- 1 can cannellini beans (also called white kidney beans)
- 1 medium onion, chopped
- 2 stalks celery, sliced
- 1 carrot, chopped
- ½ bulb garlic, minced (or more, if you like)
- 1 jalapeño, chopped
- 2 tbsp tomato paste
- 1 tbsp chia seeds
- 2 tsp black pepper, coarse ground
- Extra virgin olive oil, for frying
For the béchamel sauce:
- ½ cup milk (we recommend a neutral-tasting plant milk, such as unsweetened soy, but go with your preference)
- ⅓ cup cashews, soaked in hot water for at least 5 minutes (longer is fine) and drained
- ¼ cup nutritional yeast
- 1 tsp garlic powder
- 1 tsp dried thyme
Method
(we suggest you read everything at least once before doing anything)
Note: it will be a bonus if you can use a pan that is good both for going on the hob and in the oven, such as a deep cast iron skillet, or a Dutch oven. If you don’t have something like that though, it’s fine, just use a sauté pan or similar, and then transfer to an oven dish for the oven part—we’ll mention this again when we get to it.
1) Preheat the oven to 250℉/175℃.
2) Heat the pan, adding some oil and then the oven; fry it for about 5 minutes, stirring often.
3) Add the potatoes, celery, carrot, garlic, and jalapeño, stirring for another 2 minutes.
4) Add the tomato paste, along with 1 cup water, the chia seeds, and the black pepper, and cook for a further 15 minutes, stirring occasionally as necessary.
5) Add the cannellini beans, and cook for another 15 minutes, stirring occasionally as necessary.
6) Blend all the ingredients for the béchamel sauce, processing it until it is smooth.
7) If you are using an oven-safe pan, pour the béchamel sauce over the bean mixture (don’t stir it; the sauce should remain on top) and transfer it to the oven. Don’t use a lid.
If you’re not using an oven safe pan, first transfer the bean mixture to an oven dish, then pour the béchamel sauce over the bean mixture (don’t stir it; the sauce should remain on top) and put it in the oven. Don’t use a lid.
8) Bake for about 15 minutes, or until turning golden-brown on top.
9) Serve! It can be enjoyed on its own, or with salad and/or rice. See also, our Tasty Versatile Rice Recipe.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- What Matters Most For Your Heart?
- The Many Health Benefits Of Garlic
- Easily Digestible Vegetarian Protein Sources
- Is Dairy Scary?
- Cashew Nuts vs Coconut – Which is Healthier?
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
Take care!
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What you need to know about xylazine
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Xylazine is a non-opioid tranquilizer designed for veterinary use in animals. The sedative is not approved for use in people, yet it’s becoming more prevalent in the illicit drug supply.
Sometimes called “tranq,” it’s often mixed with other drugs, such as fentanyl, a potent opioid responsible for a growing number of overdose deaths. Last year, the White House Office of National Drug Control Policy declared fentanyl mixed with xylazine an “emerging threat.”
Read on to learn more about xylazine: what happens when people take it, what to do if an overdose is suspected, and how harm reduction tools can prevent overdose deaths.
How are people who use drugs exposed to xylazine?
Studies show people are exposed to xylazine—knowingly or unknowingly—when it’s mixed with other drugs like heroin, cocaine, meth, and, most frequently, fentanyl. When combined with opioids or other drugs, it increases the risk of a drug overdose.
What happens if someone takes xylazine?
Taking xylazine can cause drowsiness, amnesia, slow breathing, slow heart rate, dangerously low blood pressure, wounds that can become infected, and death, especially when taken in combination with other drugs.
Why does xylazine increase the risk of overdose?
Xylazine is a central nervous system depressant, which means that it slows down the body’s heart rate and breathing. It can also enhance the effects of other depressants, such as opioids, which may lead to suffocation.
What are the signs of a xylazine-related overdose?
Xylazine-related overdoses look like opioid overdoses. A person who has overdosed may exhibit a slow pulse, slow breathing, blurry vision, disorientation, drowsiness, confusion, blue skin, and loss of consciousness.
How many people die from xylazine-related overdoses in the U.S.?
Xylazine-related overdose deaths in the U.S. rose from 102 deaths in 2018 to 3,468 deaths in 2021. Most occurred in Delaware, the District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia. Fentanyl was the most frequently co-occurring drug involved in those deaths.
What should I do if an overdose is suspected?
If you suspect that a person has overdosed on any drug, call 911 and give them naloxone—sometimes sold under the brand name Narcan—a medication that can reverse an opioid overdose. You should also stay with the person who has overdosed until first responders arrive. Most states have Good Samaritan laws, which protect people who have overdosed and those assisting them from certain criminal penalties.
While naloxone cannot reverse the effects of xylazine alone, experts recommend administering naloxone if an overdose is suspected because it’s often mixed with opioids.
You can get naloxone for free from some nonprofit organizations and government-run programs. You can also purchase over-the-counter naloxone at pharmacies, grocery and convenience stores, and other retailers.
Learn how to use naloxone in this short training video from the American Medical Association, or sign up for a free online training.
How can people prevent xylazine-related overdoses?
Harm reduction programs are community programs that prevent drug overdoses, reduce the spread of infectious diseases, and connect people to medical care. These programs provide lifesaving tools like naloxone, as well as fentanyl and xylazine test strips, which can detect the presence of these drugs in a substance and prevent overdoses. Drug test strips can also be ordered online.
However, test strips are considered “drug paraphernalia” in some states and are not legal everywhere. Learn more about state laws around drug checking equipment from the Network for Public Health Law.
Learn more about harm reduction from the CDC.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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Alzheimer’s may have once spread from person to person, but the risk of that happening today is incredibly low
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An article published this week in the prestigious journal Nature Medicine documents what is believed to be the first evidence that Alzheimer’s disease can be transmitted from person to person.
The finding arose from long-term follow up of patients who received human growth hormone (hGH) that was taken from brain tissue of deceased donors.
Preparations of donated hGH were used in medicine to treat a variety of conditions from 1959 onwards – including in Australia from the mid 60s.
The practice stopped in 1985 when it was discovered around 200 patients worldwide who had received these donations went on to develop Creuztfeldt-Jakob disease (CJD), which causes a rapidly progressive dementia. This is an otherwise extremely rare condition, affecting roughly one person in a million.
What’s CJD got to do with Alzehimer’s?
CJD is caused by prions: infective particles that are neither bacterial or viral, but consist of abnormally folded proteins that can be transmitted from cell to cell.
Other prion diseases include kuru, a dementia seen in New Guinea tribespeople caused by eating human tissue, scrapie (a disease of sheep) and variant CJD or bovine spongiform encephalopathy, otherwise known as mad cow disease. This raised public health concerns over the eating of beef products in the United Kingdom in the 1980s.
Human growth hormone used to come from donated organs
Human growth hormone (hGH) is produced in the brain by the pituitary gland. Treatments were originally prepared from purified human pituitary tissue.
But because the amount of hGH contained in a single gland is extremely small, any single dose given to any one patient could contain material from around 16,000 donated glands.
An average course of hGH treatment lasts around four years, so the chances of receiving contaminated material – even for a very rare condition such as CJD – became quite high for such people.
hGH is now manufactured synthetically in a laboratory, rather than from human tissue. So this particular mode of CJD transmission is no longer a risk.
What are the latest findings about Alzheimer’s disease?
The Nature Medicine paper provides the first evidence that transmission of Alzheimer’s disease can occur via human-to-human transmission.
The authors examined the outcomes of people who received donated hGH until 1985. They found five such recipients had developed early-onset Alzheimer’s disease.
They considered other explanations for the findings but concluded donated hGH was the likely cause.
Given Alzheimer’s disease is a much more common illness than CJD, the authors presume those who received donated hGH before 1985 may be at higher risk of developing Alzheimer’s disease.
Alzheimer’s disease is caused by presence of two abnormally folded proteins: amyloid and tau. There is increasing evidence these proteins spread in the brain in a similar way to prion diseases. So the mode of transmission the authors propose is certainly plausible.
However, given the amyloid protein deposits in the brain at least 20 years before clinical Alzheimer’s disease develops, there is likely to be a considerable time lag before cases that might arise from the receipt of donated hGH become evident.
When was this process used in Australia?
In Australia, donated pituitary material was used from 1967 to 1985 to treat people with short stature and infertility.
More than 2,000 people received such treatment. Four developed CJD, the last case identified in 1991. All four cases were likely linked to a single contaminated batch.
The risks of any other cases of CJD developing now in pituitary material recipients, so long after the occurrence of the last identified case in Australia, are considered to be incredibly small.
Early-onset Alzheimer’s disease (defined as occurring before the age of 65) is uncommon, accounting for around 5% of all cases. Below the age of 50 it’s rare and likely to have a genetic contribution.
The risk is very low – and you can’t ‘catch’ it like a virus
The Nature Medicine paper identified five cases which were diagnosed in people aged 38 to 55. This is more than could be expected by chance, but still very low in comparison to the total number of patients treated worldwide.
Although the long “incubation period” of Alzheimer’s disease may mean more similar cases may be identified in the future, the absolute risk remains very low. The main scientific interest of the article lies in the fact it’s first to demonstrate that Alzheimer’s disease can be transmitted from person to person in a similar way to prion diseases, rather than in any public health risk.
The authors were keen to emphasise, as I will, that Alzheimer’s cannot be contracted via contact with or providing care to people with Alzheimer’s disease.
Steve Macfarlane, Head of Clinical Services, Dementia Support Australia, & Associate Professor of Psychiatry, Monash University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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