Shedding Some Obesity Myths
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Let’s shed some obesity myths!
There are a lot of myths and misconceptions surrounding obesity… And then there are also reactive opposite myths and misconceptions, which can sometimes be just as harmful!
To tackle them all would take a book, but in classic 10almonds style, we’re going to put a spotlight on some of the ones that might make the biggest difference:
True or False: Obesity is genetically pre-determined
False… With caveats.
Some interesting results have been found from twin studies and adoption studies, showing that genes definitely play some role, but lifestyle is—for most people—the biggest factor:
- The body-mass index of twins who have been reared apart
- An adoption study of human obesity
- Using a sibling-adoption design to parse genetic and environmental influences on children’s body mass index
In short: genes predispose; they don’t predetermine. But that predisposition alone can make quite a big difference, if it in turn leads to different lifestyle factors.
But upon seeing those papers centering BMI, let’s consider…
True or False: BMI is a good, accurate measure of health in the context of bodyweight
False… Unless you’re a very large group of thin white men of moderate height, which was the demographic the system was built around.
Bonus information: it was never intended to be used to measure the weight-related health of any individual (not even an individual thin white man of moderate height), but rather, as a tool to look at large-scale demographic trends.
Basically, as a system, it’s being used in a way it was never made for, and the results of that misappropriation of an epidemiological tool for individual health are predictably unhelpful.
To do a deep-dive into all the flaws of the BMI system, which are many, we’d need to devote a whole main feature just to that.
Update: we have now done so!
Here it is: When BMI Doesn’t Measure Up
True or False: Obesity does not meaningfully impact more general health
False… In more ways than one (but there are caveats)
Obesity is highly correlated with increased risk of all-cause mortality, and weight loss, correspondingly, correlates with a reduced risk. See for example:
So what are the caveats?
Let’s put it this way: owning a horse is highly correlated with increased healthy longevity. And while owning a horse may come with some exercise and relaxation (both of which are good for the health), it’s probably mostly not the horse itself that conveys the health benefits… it’s that someone who has the resources to look after a horse, probably has the resources to look after their own health too.
So sometimes there can be a reason for a correlation (it’s not a coincidence!) but the causative factor is partially (or in some cases, entirely) something else.
So how could this play out with obesity?
There’s a lot of discrimination in healthcare settings, unfortunately! In this case, it often happens that a thin person goes in with a medical problem and gets treated for that, while a fat person can go in with the same medical problem and be told “you should try losing some weight”.
Top tip if this happens to you… Ask: “what would you advise/prescribe to a thin person with my same symptoms?”
Other things may be more systemic, for example:
When a thin person goes to get their blood pressure taken, and that goes smoothly, while a fat person goes to get their blood pressure taken, and there’s not a blood pressure cuff to fit them, is the problem the size of the person or the size of the cuff? It all depends on perspective, in a world built around thin people.
That’s a trivial-seeming example, but the same principle has far-reaching (and harmful) implications in healthcare in general, e.g:
- Surgeons being untrained (and/or unwilling) to operate on fat people
- Getting a one-size-fits-all dose that was calculated using average weight, and now doesn’t work
- MRI machines are famously claustrophobia-inducing for thin people; now try not fitting in it in the first place
…and so forth. So oftentimes, obesity will be correlated with a poor healthcare outcome, where the problem is not actually the obesity itself, but rather the system having been set up with thin people in mind.
It would be like saying “Having O- blood type results in higher risks when receiving blood transfusions”, while omitting to add “…because we didn’t stock O- blood”.
True or False: to reduce obesity, just eat less and move more!
False… Mostly.
Moving more is almost always good for most people. When it comes to diet, quality is much more important than quantity. But these factors alone are only part of the picture!
But beyond diet and exercise, there are many other implicated factors in weight gain, weight maintenance, and weight loss, including but not limited to:
- Disrupted sleep
- Chronic stress
- Chronic pain
- Hormonal imbalances
- Physical disabilities that preclude a lot of exercise
- Mental health issues that add (and compound) extra levels of challenge
- Medications that throw all kinds of spanners into the works with their side effects
…and even just those first two things, diet and exercise, are not always so correlated to weight as one might think—studies have found that the difference for exercise especially is often marginal:
Read: Widespread misconceptions about obesity ← academic article in the Journal of the College of Family Physicians of Canada
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Tips for Avoiding PFAs
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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
❝Hi, do you have anything helpful on avoiding PFAs?❞
PFAS, or perfluoroalkyl and polyfluoroalkyl substances, are “forever chemicals” made specifically to avoid degradation of industrial and chemical products. Which is great for providing stain and water resistance, but not so great for our bodies or the environment.
To go into all the harms they cause would take a main feature (maybe we will, one of these days), but suffice it to say, they’re not good, and range from cancer and insulin resistance to hypertension and reduced immune response.
To answer your question in a nutshell, avoiding them completely would be almost impossible, but we can reduce our exposure a lot by avoiding single-use food/drink products that have been waterproofed, e.g. paper/bamboo straws, utensils, cups, dishes, take-out containers, etc.
Also, anything advertised as “stain-resistant” that you suspect should be quite stainable by nature, is probably good to avoid too.
For more detailed information than we have room for here today, here’s a helpful overview:
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How To Boost Your Memory Immediately (Without Supplements)
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How To Boost Your Memory (Without Supplements)
While we do recommend having a good diet and taking advantage of various supplements that have been found to help memory, that only gets so much mileage. With that in mind…
First, how good is your memory? Take This 2-Minute Online Test
Now, that was a test of short term memory, which tends to be the most impactful in our everyday life.
It’s the difference between “I remember the address of the house where I grew up” (long-term memory) and “what did I come to this room to do?” (short-term memory / working memory)
First tip:
When you want to remember something, take a moment to notice the details. You can’t have a madeleine moment years later if you wolfed down the madeleines so urgently they barely touched the sides.
This goes for more than just food, of course. And when facing the prospect of age-related memory loss in particular, people tend to be afraid not of forgetting their PIN code, but their cherished memories of loved ones. So… Cherish them, now! You’ll struggle to cherish them later if you don’t cherish them now. Notice the little details as though you were a painter looking at a scene for painting. Involve more senses than just sight, too!
If it’s important, relive it. Relive it now, relive it tomorrow. Rehearsal is important to memory, and each time you relive a memory, the deeper it gets written into your long-term memory until it becomes indelible to all but literal brain damage.
Second tip:
Tell the story of it to someone else. Or imagine telling it to someone else! (You brain can’t tell the difference)
And you know how it goes… Once you’ve told a story a few times, you’ll never forget it later. Isn’t your life a story worth telling?
Many people approach memory like they’re studying for a test. Don’t. Approach it like you’re preparing to tell a story, or give a performance. We are storytelling creatures at heart, whether or not we realize it.
What do you do when you find yourself in a room and wonder why you went there? (We’ve all been there!) You might look around for clues, but if that doesn’t immediately serve, your fallback will be retracing your steps. Literally, physically, if needs be, but at least mentally. The story of how you got there is easier to remember than the smallest bit of pure information.
What about when there’s no real story to tell, but we still need to remember something?
Make up a story. Did you ever play the game “My granny went to market” as a child?
If not, it’s a collaborative memory game in which players take turns adding items to a list, “My granny went to market and bought eggs”, My granny went to market and bought eggs and milk”, “my granny went to market and bought eggs and milk and flour” (is she making a cake?), “my granny went to market and bought eggs and milk and flour and shoe polish” (what image came to mind? Use that) “my granny went to market and bought eggs and milk and flour and shoe polish and tea” (continue building the story in your head), and so on.
When we actually go shopping, if we don’t have a written list we may rely on the simple story of “what I’m going to cook for dinner” and walking ourselves through that story to ensure we get the things we need.
This is because our memory thrives (and depends!) on connections. Literal synapse connections in the brain, and conceptual contextual connections in your mind. The more connections, the better the memory.
Now imagine a story: “I went to Stonehenge, but in the background was a twin-peaked mountain blue. I packed a red suitcase, placing a conch shell inside it, when suddenly I heard a trombone, and…” Ring any bells? These are example items from the memory test earlier, though of course you may have seen different things in a different order.
So next time you want to remember things, don’t study as though for a test. Prepare to tell a story!
Try going through the test again, but this time, ignore their instructions because we’re going to use the test differently than intended (we’re rebels like that). Don’t rush, and don’t worry about the score this time (or even whether or not you saw a given image previously), but instead, build a story as you go. We’re willing to bet that after it, you can probably recite most of the images you saw in their correct order with fair confidence.
Here’s the link again: Take The Same Test, But This Time Make It Story-Worthy!
Again, ignore what it says about your score this time, because we weren’t doing that this time around. Instead, list the things you saw.
What you were just able to list was the result of you doing story-telling with random zero-context images while under time pressure.
Imagine what you can do with actual meaningful memories of your ongoing life, people you meet, conversations you have!
Just… Take the time to smell the roses, then rehearse the story you’ll tell about them. That memory will swiftly become as strong as any memory can be, and quickly get worked into your long-term memory for the rest of your days.
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What causes the itch in mozzie bites? And why do some people get such a bad reaction?
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Are you one of these people who loathes spending time outdoors at dusk as the weather warms and mosquitoes start biting?
Female mosquitoes need blood to develop their eggs. Even though they take a tiny amount of our blood, they can leave us with itchy red lumps that can last days. And sometimes something worse.
So why does our body react and itch after being bitten by a mosquito? And why are some people more affected than others?
Arthur Poulin/Unsplash What happens when a mosquito bites?
Mosquitoes are attracted to warm blooded animals, including us. They’re attracted to the carbon dioxide we exhale, our body temperatures and, most importantly, the smell of our skin.
The chemical cocktail of odours from bacteria and sweat on our skin sends out a signal to hungry mosquitoes.
Some people’s skin smells more appealing to mosquitoes, and they’re more likely to be bitten than others.
Once the mosquito has made its way to your skin, things get a little gross.
The mosquito pierces your skin with their “proboscis”, their feeding mouth part. But the proboscis isn’t a single, straight, needle-like tube. There are multiple tubes, some designed for sucking and some for spitting.
Once their mouth parts have been inserted into your skin, the mosquito will inject some saliva. This contains a mix of chemicals that gets the blood flowing better.
There has even been a suggestion that future medicines could be inspired by the anti-blood clotting properties of mosquito saliva.
A common pest mosquito around the world, Culex quinquefasciatus. Cameron Webb (NSW Health Pathology), CC BY It’s not the stabbing of our skin by the mosquito’s mouth parts that hurts, it’s the mozzie spit our bodies don’t like.
Are some people allergic to mosquito spit?
Once a mosquito has injected their saliva into our skin, a variety of reactions can follow. For the lucky few, nothing much happens at all.
For most people, and irrespective of the type of mosquito biting, there is some kind of reaction. Typically there is redness and swelling of the skin that appears within a few hours, but often more quickly, after just a few minutes.
Occasionally, the reaction can cause pain or discomfort. Then comes the itchiness.
Some people do suffer severe reactions to mosquito bites. It’s a condition often referred to as “skeeter syndrome” and is an allergic reaction caused by the protein in the mosquito’s saliva. This can cause large areas of swelling, blistering and fever.
The chemistry of mosquito spit hasn’t really been well studied. But it has been shown that, for those who do suffer allergic reactions to their bites, the reactions may differ depending on the type of mosquito biting.
We all probably get more tolerant of mosquito bites as we get older. Young children are certainly more likely to suffer more following mosquito bites. But as we get older, the reactions are less severe and may pass quickly without too much notice.
How best to treat the bites?
Research into treating bites has yet to provide a single easy solution.
There are many myths and home remedies about what works. But there is little scientific evidence supporting their use.
The best way to treat mosquito bites is by applying a cold pack to reduce swelling and to keep the skin clean to avoid any secondary infections. Antiseptic creams and lotions may also help.
There is some evidence that heat may alleviate some of the discomfort.
It’s particularly tough to keep young children from scratching at the bite and breaking the skin. This can form a nasty scab that may end up being worse than the bite itself.
Applying an anti-itch cream may help. If the reactions are severe, antihistamine medications may be required.
To save the scratching, stop the bites
Of course, it’s better not to be bitten by mosquitoes in the first place. Topical insect repellents are a safe, effective and affordable way to reduce mosquito bites.
Covering up with loose fitted long sleeved shirts, long pants and covered shoes also provides a physical barrier.
Mosquito coils and other devices can also assist, but should not be entirely relied on to stop bites.
There’s another important reason to avoid mosquito bites: millions of people around the world suffer from mosquito-borne diseases. More than half a million people die from malaria each year.
In Australia, Ross River virus infects more than 5,000 people every year. And in recent years, there have been cases of serious illnesses caused by Japanese encephalitis and Murray Valley encephalitis viruses.
Cameron Webb, Clinical Associate Professor and Principal Hospital Scientist, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Apricots vs Peaches – Which is Healthier?
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Our Verdict
When comparing apricots to peaches, we picked the apricots.
Why?
Both are great! But there’s a clear winner:
In terms of macros, apricots have more fiber and, which is less important because the numbers are small, more protein. Apricots do also have more carbs, and/but carbs from whole fruit are not a problem for most people (especially because of the fiber), unless undertaking a very carb-controlled diet.
When it comes to vitamins, apricots sweep with more of vitamins A, B1, B2, B5, B6, B9, C, E, & K. Peaches meanwhile boast more vitamin B3, and that only marginally, as well as more choline.
In the category of minerals, apricots sweep again with more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc. Peaches are not higher in any minerals.
Finally, if we consider polyphenols, apricots sweep yet again. The flavonols that peaches have, apricots have more of, and apricots have a long list of flavonols that peaches don’t.
Outside of flavonols, there is one (1) phenolic acid that peaches have more of (it’s 3-Caffeoylquinic acid), and it’s only slightly more, and it’s mostly in the skin which isn’t included if you buy your fruit ready-chopped. So in those cases, apricots would have the higher 3-Caffeoylquinic acid content anyway.
All in all, with their higher content of fiber, vitamins, minerals, and polyphenols, apricots easily win the day.
Enjoy both, though! Diversity is healthy!
Want to learn more?
You might like to read:
- Dried Apricots vs Dried Prunes – Which is Healthier?
- Which Sugars Are Healthier, And Which Are Just The Same? ← we know we link this one a lot, but we think it’s important for everyone to know how fruit is good and juice isn’t (and why, less that seem bizarrely arbitrary)
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Seniors: Improve Blood Flow & Circulation In Your Legs
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Dr. Doug Weiss, a physiotherapist (and thus: a doctor of physical therapy), has advice on how and why to increase blood flow and circulation in your legs, keeping yourself healthier for longer and avoiding a lot of potential unpleasantries.
The exercises
The exercises here are not complex; they are as follows, and he suggests 3 sets of 10 reps of each, daily:
- Sitting ankle pumps: sitting on a chair or the edge of a bed, lift the toes up, then heels up, squeezing the muscles.
- Sitting knee extensions: sitting as before, kick one leg up until knee is straight, then switch legs.
- Heel raises: standing this time, with a sturdy support such as a countertop, raise on toes as high as possible, then lower heels back to the ground
- Pillow squats: placing pillows on a chair, cross hands on chest, and simply stand up and sit down—similar to the “getting up off the floor without using your hands” exercise, but an easier version.
For visuals on these, and more details including the specific benefits of each, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like:
4 Tips To Stand Without Using Hands ← this time it’s the full movement, from the floor, and this is a really important movement to be able to do, as it’s a big indicator of healthy longevity
Take care!
Don’t Forget…
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Peas vs Broad Beans – Which is Healthier?
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Our Verdict
When comparing peas to broad beans, we picked the peas.
Why?
Both are great of course, but…
Looking at the macros to start with, peas have more protein and more fiber. The differences aren’t huge, but they are clear.
In terms of vitamins, peas have more of vitamins A, B1, B2, B3, B5, B6, B9, E, K, and choline (some with very large margins, some with small), while broad beans contain a little more vitamin C (the margin is quite narrow though).
When it comes to minerals, peas have more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc, while broad beans have more sodium. So this category wasn’t close.
Adding up the win from each of the categories makes for a clear triple-win for peas.
Easy-peasy!
Want to learn more?
You might like to read:
Take care!
Don’t Forget…
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