The Biological Mind – by Dr. Alan Jasanoff
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How special is our brain? According to Dr. Alan Jasanoff, it’s not nearly as special as we think it is.
In this work, he outlines the case for how we have collectively overstated the brain’s importance. That it’s just another organ like a heart or a kidney, and that who we are is as much a matter of other factors, as what goes on in our brain.
In this reviewer’s opinion, he overcorrects a bit. The heart and kidneys are very simple organs, as organs go. The brain is not. And while everything from our gut microbiota to our environment to our hormones may indeed contribute to what is us, our brain is one thing that can’t just be swapped out.
Nevertheless, this very well-written book can teach us a lot about everything else that makes us us, including many biological factors that many people don’t know about or consider.
Towards the end of the book, he switches into futurist speculation, and his speculation can be summed up as “we cannot achieve anything worthwhile in the future”.
Bottom line: if you’ve an interest in such things as how transplanting glial cells can give a 30% cognitive enhancement, and how a brain transplant wouldn’t result in the same us in a different body, this is the book for you.
Click here to check out The Biological Mind, and learn about yours!
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Military Secrets (Ssh!)
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Can you keep a secret?
When actor Christopher Lee was asked about his time as a British special forces operative, he would look furtively around, and ask “can you keep a secret?” Upon getting a yes, he would reply:
“So can I”
We can’t, though! We just can’t help sharing cool, useful information that changes people’s lives. Never is that more critical than now, as the end of January has been called the most depressing time of year, according to Dr. Cliff Arnall at the University of Cardiff. It doesn’t have to be all doom and gloom, though:
Today we’re going to share a trick… It’s called the “secret of eternal happiness” (yes, we know… we didn’t come up with the name!) and is taught to soldiers to fend off the worst kinds of despair.
The soldiers would be ordered to take a moment to reflect on the sheer helplessness of their situation, the ridiculous impossibility of the odds against them, all and any physical pain they might suffer, the weakness of their faltering body… and just when everything feels as bad is it can possibly feel, they’re told to say out loud—as sadly as possible—this single word:
“Boop”
It all but guarantees to result in cracking a smile, no matter the situation.
Now this knowledge is yours too! Keep it secret! Or don’t. Sharing is caring.
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What you need to know about menopause
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Menopause describes the time when a person with ovaries has gone one full year without a menstrual period. Reaching this phase is a natural aging process that marks the end of reproductive years.
Read on to learn more about the causes, stages, signs, and management of menopause.
What causes menopause?
As you age, your ovaries begin making less estrogen and progesterone—two of the hormones involved in menstruation—and your fertility declines, causing menopause.
Most people begin perimenopause, the transitional time that ends in menopause, in their late 40s, but it can start earlier. On average, people in the U.S. experience menopause in their early 50s.
Your body may reach early menopause for a variety of reasons, including having an oophorectomy, a surgery that removes the ovaries. In this case, the hormonal changes happen abruptly rather than gradually.
Chemotherapy and radiation therapy for cancer patients may also induce menopause, as these treatments may impact ovary function.
What are the stages of menopause?
There are three stages:
- Perimenopause typically occurs eight to 10 years before menopause happens. During this stage, estrogen production begins to decline and ovaries release eggs less frequently.
- Menopause marks the point when you have gone 12 consecutive months without a menstrual period. This means the ovaries have stopped releasing eggs and producing estrogen.
- Postmenopause describes the time after menopause. Once your body reaches this phase, it remains there for the rest of your life.
How do the stages of menopause affect fertility?
Your ovaries still produce eggs during perimenopause, so it is still possible to get pregnant during that stage. If you do not wish to become pregnant, continue using your preferred form of birth control throughout perimenopause.
Once you’ve reached menopause, you can no longer get pregnant naturally. People who would like to become pregnant after that may pursue in vitro fertilization (IVF) using eggs that were frozen earlier in life or donor eggs.
What are the signs of menopause?
Hormonal shifts result in a number of bodily changes. Signs you are approaching menopause may include:
- Hot flashes (a sudden feeling of warmth).
- Irregular menstrual periods, or unusually heavy or light menstrual periods.
- Night sweats and/or cold flashes.
- Insomnia.
- Slowed metabolism.
- Irritability, mood swings, and depression.
- Vaginal dryness.
- Changes in libido.
- Dry skin, eyes, and/or mouth.
- Worsening of premenstrual syndrome (PMS).
- Urinary urgency (a sudden need to urinate).
- Brain fog.
How can I manage the effects of menopause?
You may not need any treatment to manage the effects of menopause. However, if the effects are disrupting your life, your doctor may prescribe hormone therapy.
If you have had a hysterectomy, your doctor may prescribe estrogen therapy (ET), which may be administered via a pill, patch, cream, spray, or vaginal ring. If you still have a uterus, your doctor may prescribe estrogen progesterone/progestin hormone therapy (EPT), which is sometimes called “combination therapy.”
Both of these therapies work by replacing the hormones your body has stopped making, which can reduce the physical and mental effects of menopause.
Other treatment options may include antidepressants, which can help manage mood swings and hot flashes; prescription creams to alleviate vaginal dryness; or gabapentin, an anti-seizure medication that has been shown to reduce hot flashes.
Lifestyle changes may help alleviate the effects on their own or in combination with prescription medication. Those changes include:
- Incorporating movement into your daily life.
- Limiting caffeine and alcohol.
- Quitting smoking.
- Maintaining a regular sleep schedule.
- Practicing relaxation techniques, such as meditation.
- Consuming foods rich in plant estrogens, such as grains, beans, fruits, vegetables, and seeds.
- Seeking support from a therapist and from loved ones.
What health risks are associated with menopause?
Having lower levels of estrogen may put you at greater risk of certain health complications, including osteoporosis and coronary artery disease.
Osteoporosis occurs when bones lose their density, increasing the risk of fractures. A 2022 study found that the prevalence of osteoporotic fractures in postmenopausal women was 82.2 percent.
Coronary artery disease occurs when the arteries that send blood to your heart become narrow or blocked with fatty plaque.
Estrogen therapy can reduce your risk of osteoporosis and coronary artery disease by preserving bone mass and maintaining cardiovascular function.
For more information, talk to your health care provider.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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What happens when I stop taking a drug like Ozempic or Mounjaro?
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Hundreds of thousands of people worldwide are taking drugs like Ozempic to lose weight. But what do we actually know about them? This month, The Conversation’s experts explore their rise, impact and potential consequences.
Drugs like Ozempic are very effective at helping most people who take them lose weight. Semaglutide (sold as Wegovy and Ozempic) and tirzepatide (sold as Zepbound and Mounjaro) are the most well known in the class of drugs that mimic hormones to reduce feelings of hunger.
But does weight come back when you stop using it?
The short answer is yes. Stopping tirzepatide and semaglutide will result in weight regain in most people.
So are these medications simply another (expensive) form of yo-yo dieting? Let’s look at what the evidence shows so far.
It’s a long-term treatment, not a short course
If you have a bacterial infection, antibiotics will help your body fight off the germs causing your illness. You take the full course of medication, and the infection is gone.
For obesity, taking tirzepatide or semaglutide can help your body get rid of fat. However it doesn’t fix the reasons you gained weight in the first place because obesity is a chronic, complex condition. When you stop the medications, the weight returns.
Perhaps a more useful comparison is with high blood pressure, also known as hypertension. Treatment for hypertension is lifelong. It’s the same with obesity. Medications work, but only while you are taking them. (Though obesity is more complicated than hypertension, as many different factors both cause and perpetuate it.)
Therefore, several concurrent approaches are needed; taking medication can be an important part of effective management but on its own, it’s often insufficient. And in an unwanted knock-on effect, stopping medication can undermine other strategies to lose weight, like eating less.
Why do people stop?
Research trials show anywhere from 6% to 13.5% of participants stop taking these drugs, primarily because of side effects.
But these studies don’t account for those forced to stop because of cost or widespread supply issues. We don’t know how many people have needed to stop this medication over the past few years for these reasons.
Understanding what stopping does to the body is therefore important.
So what happens when you stop?
When you stop using tirzepatide or semaglutide, it takes several days (or even a couple of weeks) to move out of your system. As it does, a number of things happen:
- you start feeling hungry again, because both your brain and your gut no longer have the medication working to make you feel full
- blood sugars increase, because the medication is no longer acting on the pancreas to help control this. If you have diabetes as well as obesity you may need to take other medications to keep these in an acceptable range. Whether you have diabetes or not, you may need to eat foods with a low glycemic index to stabilise your blood sugars
- over the longer term, most people experience a return to their previous blood pressure and cholesterol levels, as the weight comes back
- weight regain will mostly be in the form of fat, because it will be gained faster than skeletal muscle.
While you were on the medication, you will have lost proportionally less skeletal muscle than fat, muscle loss is inevitable when you lose weight, no matter whether you use medications or not. The problem is, when you stop the medication, your body preferentially puts on fat.
Is stopping and starting the medications a problem?
People whose weight fluctuates with tirzepatide or semaglutide may experience some of the downsides of yo-yo dieting.
When you keep going on and off diets, it’s like a rollercoaster ride for your body. Each time you regain weight, your body has to deal with spikes in blood pressure, heart rate, and how your body handles sugars and fats. This can stress your heart and overall cardiovascular system, as it has to respond to greater fluctuations than usual.
Interestingly, the risk to the body from weight fluctuations is greater for people who are not obese. This should be a caution to those who are not obese but still using tirzepatide or semaglutide to try to lose unwanted weight.
How can you avoid gaining weight when you stop?
Fear of regaining weight when stopping these medications is valid, and needs to be addressed directly. As obesity has many causes and perpetuating factors, many evidence-based approaches are needed to reduce weight regain. This might include:
- getting quality sleep
- exercising in a way that builds and maintains muscle. While on the medication, you will likely have lost muscle as well as fat, although this is not inevitable, especially if you exercise regularly while taking it
- addressing emotional and cultural aspects of life that contribute to over-eating and/or eating unhealthy foods, and how you view your body. Stigma and shame around body shape and size is not cured by taking this medication. Even if you have a healthy relationship with food, we live in a culture that is fat-phobic and discriminates against people in larger bodies
- eating in a healthy way, hopefully continuing with habits that were formed while on the medication. Eating meals that have high nutrition and fibre, for example, and lower overall portion sizes.
Many people will stop taking tirzepatide or semaglutide at some point, given it is expensive and in short supply. When you do, it is important to understand what will happen and what you can do to help avoid the consequences. Regular reviews with your GP are also important.
Read the other articles in The Conversation’s Ozempic series here.
Natasha Yates, General Practitioner, PhD Candidate, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Polyvagal Theory – by Dr. Stephen Porges
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Do you ever find that your feelings (or occasionally: lack thereof) sometimes can seem mismatched with the observed facts of your situation? This book unravels that mystery—or rather, that stack of mysteries.
Dr. Porges’ work on this topic is, by the way, the culmination of 40 years of research. While he’s not exactly a household name to the layperson, he’s very respected in his field, and this book is his magnum opus.
Here he explains the disparate roles of the two branches of the vagus nerve (hence: polyvagal theory). At least, the two branches that we mammals have; non-mammalian vertebrates have only one. This makes a big difference, because of the cascade of inhibitions that this allows.
The answer to the very general question “What stops you from…?” is usually found somewhere down this line of cascade of inhibitions.
These range from “what stops you from quitting your job/relationship/etc” to “what stops you from freaking out” to “what stops you from relaxing” to “what stops you from reacting quickly” to “what stop you from giving up” to “what stops you from gnawing your arm off” and many many more.
And because sometimes we wish we could do something that we can’t, or wish we wouldn’t do something that we do, understanding this process can be something of a cheat code to life.
A quick note on style: the book is quite dense and can be quite technical, but should be comprehensible to any layperson who is content to take their time, because everything is explained as we go along.
Bottom line: if you’d like to better understand the mysteries of how you feel vs how you actually are, and what that means for what you can or cannot wilfully do, this is a top-tier book
Click here to check out Polyvagal Theory, and take control of your responses!
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Which Sugars Are Healthier, And Which Are Just The Same?
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From Apples to Bees, and High-Fructose C’s
We asked you for your (health-related) policy on sugar. The trends were as follows:
- About half of all respondents voted for “I try to limit sugar intake, but struggle because it’s in everything”
- About a quarter of all respondents voted for “Refined sugar is terrible; natural sugars (e.g. honey, agave) are fine”
- About a quarter of all respondents voted for “Sugar is sugar and sugar is bad; I avoid it entirely”
- One (1) respondent voted for “Sugar is an important source of energy, so I consume plenty”
Writer’s note: I always forget to vote in these, but I’d have voted for “I try to limit sugar intake, but struggle because it’s in everything”.
Sometimes I would like to make my own [whatever] to not have the sugar, but it takes so much more time, and often money too.
So while I make most things from scratch (and typically spend about an hour cooking each day), sometimes store-bought is the regretfully practical timesaver/moneysaver (especially when it comes to condiments).
So, where does the science stand?
There has, of course, been a lot of research into the health impact of sugar.
Unfortunately, a lot of it has been funded by sugar companies, which has not helped. Conversely, there are also studies funded by other institutions with other agendas to push, and some of them will seek to make sugar out to be worse than it is.
So for today’s mythbusting overview, we’ve done our best to quality-control studies for not having financial conflicts of interest. And of course, the usual considerations of favoring high quality studies where possible Large sample sizes, good method, human subjects, that sort of thing.
Sugar is sugar and sugar is bad: True or False?
False and True, respectively.
- Sucrose is sucrose, and is generally bad.
- Fructose is fructose, and is worse.
Both ultimately get converted into glycogen (if not used immediately for energy), but for fructose, this happens mostly* in the liver, which a) taxes it b) goes very unregulated by the pancreas, causing potentially dangerous blood sugar spikes.
This has several interesting effects:
- Because fructose doesn’t directly affect insulin levels, it doesn’t cause insulin insensitivity (yay)
- Because fructose doesn’t directly affect insulin levels, this leaves hyperglycemia untreated (oh dear)
- Because fructose is metabolized by the liver and converted to glycogen which is stored there, it’s one of the main contributors to non-alcoholic fatty liver disease (at this point, we’re retracting our “yay”)
Read more: Fructose and sugar: a major mediator of non-alcoholic fatty liver disease
*”Mostly” in the liver being about 80% in the liver. The remaining 20%ish is processed by the kidneys, where it contributes to kidney stones instead. So, still not fabulous.
Fructose is very bad, so we shouldn’t eat too much fruit: True or False?
False! Fruit is really not the bad guy here. Fruit is good for you!
Fruit does contain fructose yes, but not actually that much in the grand scheme of things, and moreover, fruit contains (unless you have done something unnatural to it) plenty of fiber, which mitigates the impact of the fructose.
- A medium-sized apple (one of the most sugary fruits there is) might contain around 11g of fructose
- A tablespoon of high-fructose corn syrup can have about 27g of fructose (plus about 3g glucose)
Read more about it: Effects of high-fructose (90%) corn syrup on plasma glucose, insulin, and C-peptide in non-insulin-dependent diabetes mellitus and normal subjects
However! The fiber content (in fruit) mitigates the impact of the fructose almost entirely anyway.
And if you take fruits that are high in sugar and/but high in polyphenols, like berries, they now have a considerable net positive impact on glycemic health:
- Polyphenols and Glycemic Control
- Polyphenols and their effects on diabetes management: A review
- Dietary polyphenols as antidiabetic agents: Advances and opportunities
You may be wondering: what was that about “unless you have done something unnatural to it”?
That’s mostly about juicing. Juicing removes much (or all) of the fiber, and if you do that, you’re basically back to shooting fructose into your veins:
- Effect of Fruit Juice on Glucose Control and Insulin Sensitivity in Adults: A Meta-Analysis of 12 Randomized Controlled Trials
- Intake of Fruit, Vegetables, and Fruit Juices and Risk of Diabetes in Women
Natural sugars like honey, agave, and maple syrup, are healthier than refined sugars: True or False?
True… Sometimes, and sometimes marginally.
This is partly because of the glycemic index and glycemic load. The glycemic index scores tail off thus:
- table sugar = 65
- maple syrup = 54
- honey = 46
- agave syrup = 15
So, that’s a big difference there between agave syrup and maple syrup, for example… But it might not matter if you’re using a very small amount, which means it may have a high glycemic index but a low glycemic load.
Note, incidentally, that table sugar, sucrose, is a disaccharide, and is 50% glucose and 50% fructose.
The other more marginal health benefits come from that fact that natural sugars are usually found in foods high in other nutrients. Maple syrup is very high in manganese, for example, and also a fair source of other minerals.
But… Because of its GI, you really don’t want to be relying on it for your nutrients.
Wait, why is sugar bad again?
We’ve been covering mostly the more “mythbusting” aspects of different forms of sugar, rather than the less controversial harms it does, but let’s give at least a cursory nod to the health risks of sugar overall:
- Obesity and associated metabolic risk
- Main contributor to non-alcoholic fatty liver disease
- Increased risk of heart disease
- Insulin resistance and diabetes risk
- Cellular aging (shortened telomeres)
- 95% increased cancer risk
That last one, by the way, was a huge systematic review of 37 large longitudinal cohort studies. Results varied depending on what, specifically, was being examined (e.g. total sugar, fructose content, sugary beverages, etc), and gave up to 200% increased cancer risk in some studies on sugary beverages, but 95% increased risk is a respectable example figure to cite here, pertaining to added sugars in foods.
And finally…
The 56 Most Common Names for Sugar (Some Are Tricky)
How many did you know?
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Be A Plant-Based Woman Warrior – by Jane Esselstyn & Ann Esselstyn
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Notwithstanding the title, this book is not about being a woman or a warrior, but let us share what one reviewer on Amazon wrote:
❝I don’t want to become a plant based woman warrior. The sex change would be traumatic for me. However, as a man who proudly takes ballet classes and Pilates, I am old enough not to worry about stereotypes. When I see a good thing, I am going to use it❞
The authors, a mother-and-daughter team in their 80s and 50s respectively, do give a focus on things that disproportionally affect women, and rectifying those things with diet, especially in one of the opening chapters.
Most the book, however, is about preventing/reversing things that can affect everyone, such as heart disease, diabetes, inflammation and the autoimmune diseases associated with such, and cancer in general, hence the dietary advice being good for most people (unless you have an unusually restrictive diet).
We get an overview of the pantry we should cultivate and curate, as well as some basic kitchen skills that will see us well for the rest of the book, such as how to make oat flour and other similar mini-recipes, before getting into the main recipes themselves.
About the recipes: they are mostly quite simple, though often rely on having pre-prepared items from the mini-recipes we mentioned earlier. They’re all vegan, mostly but not all gluten-free, whole foods, no added sugar, and as for oil… Well, it seems to be not necessarily oil-free, but rather oil-taboo. You see, they just don’t mention it. For example, when they say to caramelize onions, they say to heat a skillet, and when it is hot, add the onions, and stir until browned. They don’t mention any oil in the ingredients or in the steps. It is a mystery. 10almonds note: we recommend olive oil, or avocado oil if you prefer a milder taste and/or need a higher smoke point.
Bottom line: the odd oil taboo aside, this is a good book of simple recipes that teaches some good plant-based kitchen skills while working with a healthy, whole food pantry.
Click here to check out Be A Plant-Based Woman Warrior, and be a plant-based woman warrior!
Or at the very least: be a plant-based cook regardless of gender, hopefully without war, and enjoy the additions to your culinary repertoire
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